;;; isearch.el --- incremental search minor mode.
-;; Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
+;; Copyright (C) 1992, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
;; Author: Daniel LaLiberte <liberte@cs.uiuc.edu>
-
-;; |$Date: 1994/11/15 16:56:44 $|$Revision: 1.77 $
+;; Maintainer: FSF
;; This file is part of GNU Emacs.
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to
-;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
;;; Commentary:
-;;;====================================================================
;; Instructions
;; For programmed use of isearch-mode, e.g. calling (isearch-forward),
;;; Change Log:
-;;; Changes before those recorded in ChangeLog:
-
-;;; 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.
-;;; Added some support for lemacs.
-;;; Added general isearch-highlight option - but only for lemacs so far.
-;;; Added support for frame switching in emacs 19.
-;;; Added word search option to isearch-edit-string.
-;;; Renamed isearch-quit to isearch-abort.
-;;; Numerous changes to comments and doc strings.
-;;;
-;;; Revision 1.3 92/06/29 13:10:08 liberte
-;;; Moved modal isearch-mode handling into isearch-mode.
-;;; Got rid of buffer-local isearch variables.
-;;; isearch-edit-string used by ring adjustments, completion, and
-;;; nonincremental searching. C-s and C-r are additional exit commands.
-;;; Renamed all regex to regexp.
-;;; Got rid of found-start and found-point globals.
-;;; Generalized handling of upper-case chars.
-
-;;; Revision 1.2 92/05/27 11:33:57 liberte
-;;; Emacs version 19 has a search ring, which is supported here.
-;;; Other fixes found in the version 19 isearch are included here.
-;;;
-;;; Also see variables search-caps-disable-folding,
-;;; search-nonincremental-instead, search-whitespace-regexp, and
-;;; commands isearch-toggle-regexp, isearch-edit-string.
-;;;
-;;; semi-modal isearching is supported.
-
-;;; Changes for 1.1
-;;; 3/18/92 Fixed invalid-regexp.
-;;; 3/18/92 Fixed yanking in regexps.
+;; Changes before those recorded in ChangeLog:
+
+;; 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.
+;; Added some support for lemacs.
+;; Added general isearch-highlight option - but only for lemacs so far.
+;; Added support for frame switching in emacs 19.
+;; Added word search option to isearch-edit-string.
+;; Renamed isearch-quit to isearch-abort.
+;; Numerous changes to comments and doc strings.
+;;
+;; Revision 1.3 92/06/29 13:10:08 liberte
+;; Moved modal isearch-mode handling into isearch-mode.
+;; Got rid of buffer-local isearch variables.
+;; isearch-edit-string used by ring adjustments, completion, and
+;; nonincremental searching. C-s and C-r are additional exit commands.
+;; Renamed all regex to regexp.
+;; Got rid of found-start and found-point globals.
+;; Generalized handling of upper-case chars.
+
+;; Revision 1.2 92/05/27 11:33:57 liberte
+;; Emacs version 19 has a search ring, which is supported here.
+;; Other fixes found in the version 19 isearch are included here.
+;;
+;; Also see variables search-caps-disable-folding,
+;; search-nonincremental-instead, search-whitespace-regexp, and
+;; commands isearch-toggle-regexp, isearch-edit-string.
+;;
+;; semi-modal isearching is supported.
+
+;; Changes for 1.1
+;; 3/18/92 Fixed invalid-regexp.
+;; 3/18/92 Fixed yanking in regexps.
;;; Code:
\f
-;;;========================================================================
;;; Some additional options and constants.
-(defconst search-exit-option t
- "*Non-nil means random control characters terminate incremental search.")
+(defgroup isearch nil
+ "Incremental search minor mode."
+ :prefix "isearch-"
+ :prefix "search-"
+ :group 'matching)
+
-(defvar search-slow-window-lines 1
+(defcustom search-exit-option t
+ "*Non-nil means random control characters terminate incremental search."
+ :type 'boolean
+ :group 'isearch)
+
+(defcustom search-slow-window-lines 1
"*Number of lines in slow search display windows.
These are the short windows used during incremental search on slow terminals.
Negative means put the slow search window at the top (normally it's at bottom)
-and the value is minus the number of lines.")
+and the value is minus the number of lines."
+ :type 'integer
+ :group 'isearch)
-(defvar search-slow-speed 1200
+(defcustom search-slow-speed 1200
"*Highest terminal speed at which to use \"slow\" style incremental search.
This is the style where a one-line window is created to show the line
-that the search has reached.")
+that the search has reached."
+ :type 'integer
+ :group 'isearch)
-(defvar search-upper-case 'not-yanks
+(defcustom 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
apply to chars in regexps that are prefixed with `\\'.
-If this value is `not-yanks', yanked text is always downcased.")
+If this value is `not-yanks', yanked text is always downcased."
+ :type '(choice (const :tag "off" nil)
+ (const not-yanks)
+ (sexp :tag "on" :format "%t\n" t))
+ :group 'isearch)
-(defvar search-nonincremental-instead t
+(defcustom search-nonincremental-instead t
"*If non-nil, do a nonincremental search instead if exiting immediately.
Actually, `isearch-edit-string' is called to let you enter the search
-string, and RET terminates editing and does a nonincremental search.")
+string, and RET terminates editing and does a nonincremental search."
+ :type 'boolean
+ :group 'isearch)
-(defconst search-whitespace-regexp "\\s-+"
+(defcustom search-whitespace-regexp "\\s-+"
"*If non-nil, regular expression to match a sequence of whitespace chars.
-You might want to use something like \"[ \\t\\r\\n]+\" instead.")
-
-;; I removed the * from the doc string because highlighting is not
-;; currently a clean thing to do. Once highlighting is made clean,
-;; this feature can be re-enabled and advertised.
-(defvar search-highlight nil
- "*Non-nil means incremental search highlights the current match.")
+You might want to use something like \"[ \\t\\r\\n]+\" instead."
+ :type 'regexp
+ :group 'isearch)
+
+(defcustom search-highlight t
+ "*Non-nil means incremental search highlights the current match."
+ :type 'boolean
+ :group 'isearch)
+
+(defcustom search-invisible 'open
+ "If t incremental search can match hidden text.
+nil means don't match invisible text.
+If the value is `open', if the text matched is made invisible by
+an overlay having an `invisible' property and that overlay has a property
+`isearch-open-invisible', then incremental search will show the contents.
+\(This applies when using `outline.el' and `hideshow.el'.)"
+ :type '(choice (const :tag "Match hidden text" t)
+ (const :tag "Open overlays" open)
+ (const :tag "Don't match hidden text" t))
+ :group 'isearch)
+
+(defcustom isearch-hide-immediately t
+ "If t hide the previous match if needed.
+This has efect iff `search-invisible' is set to `open' and it means
+that if the current match is out of one of the previously shown
+regions hide is right away, as opposed to hiding it at the end of
+isearch."
+ :type 'boolean
+ :group 'isearch)
(defvar isearch-mode-hook nil
"Function(s) to call after starting up an incremental search.")
(defvar isearch-mode-end-hook nil
"Function(s) to call after terminating an incremental search.")
-;;;==================================================================
;;; Search ring.
(defvar search-ring nil
(defvar regexp-search-ring nil
"List of regular expression search string sequences.")
-(defconst search-ring-max 16
- "*Maximum length of search ring before oldest elements are thrown away.")
-(defconst regexp-search-ring-max 16
- "*Maximum length of regexp search ring before oldest elements are thrown away.")
+(defcustom search-ring-max 16
+ "*Maximum length of search ring before oldest elements are thrown away."
+ :type 'integer
+ :group 'isearch)
+(defcustom regexp-search-ring-max 16
+ "*Maximum length of regexp search ring before oldest elements are thrown away."
+ :type 'integer
+ :group 'isearch)
(defvar search-ring-yank-pointer nil
"Index in `search-ring' of last string reused.
"Index in `regexp-search-ring' of last string reused.
nil if none yet.")
-(defvar search-ring-update nil
+(defcustom search-ring-update nil
"*Non-nil if advancing or retreating in the search ring should cause search.
-Default value, nil, means edit the string instead.")
+Default value, nil, means edit the string instead."
+ :type 'boolean
+ :group 'isearch)
-;;;====================================================
;;; Define isearch-mode keymap.
(defvar isearch-mode-map nil
(let* ((i 0)
(map (make-keymap)))
(or (vectorp (nth 1 map))
+ (char-table-p (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 Latin-1, Latin-2, Latin-3 and Latin-4 characters
+ ;; search for themselves.
+ (aset (nth 1 map) (make-char 'latin-iso8859-1) 'isearch-printing-char)
+ (aset (nth 1 map) (make-char 'latin-iso8859-2) 'isearch-printing-char)
+ (aset (nth 1 map) (make-char 'latin-iso8859-3) 'isearch-printing-char)
+ (aset (nth 1 map) (make-char 'latin-iso8859-4) 'isearch-printing-char)
+ (aset (nth 1 map) (make-char 'latin-iso8859-9) 'isearch-printing-char)
;; Make function keys, etc, exit the search.
(define-key map [t] 'isearch-other-control-char)
;; Control chars, by default, end isearch mode transparently.
(define-key map (vector i) 'isearch-printing-char)
(setq i (1+ i)))
+ ;; 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.
+ (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)
+
;; Several non-printing chars change the searching behavior.
(define-key map "\C-s" 'isearch-repeat-forward)
(define-key map "\C-r" 'isearch-repeat-backward)
(define-key map "\177" 'isearch-delete-char)
(define-key map "\C-g" 'isearch-abort)
+ ;; This assumes \e is the meta-prefix-char.
+ (or (= ?\e meta-prefix-char)
+ (error "Inconsistency in isearch.el"))
+ (define-key map "\e\e\e" 'isearch-cancel)
+ (define-key map [escape escape escape] 'isearch-cancel)
(define-key map "\C-q" 'isearch-quote-char)
(define-key map "\C-w" 'isearch-yank-word)
(define-key map "\C-y" 'isearch-yank-line)
- ;; Bind the ASCII-equivalent "function keys" explicitly to nil
- ;; so that the default binding does not apply.
- ;; As a result, these keys translate thru function-key-map
- ;; as normal, and they have the effect of the equivalent ASCII char.
- ;; We bind [escape] below.
- (define-key map [tab] 'nil)
- (define-key map [kp-0] 'nil)
- (define-key map [kp-1] 'nil)
- (define-key map [kp-2] 'nil)
- (define-key map [kp-3] 'nil)
- (define-key map [kp-4] 'nil)
- (define-key map [kp-5] 'nil)
- (define-key map [kp-6] 'nil)
- (define-key map [kp-7] 'nil)
- (define-key map [kp-8] 'nil)
- (define-key map [kp-9] 'nil)
- (define-key map [kp-add] 'nil)
- (define-key map [kp-subtract] 'nil)
- (define-key map [kp-multiply] 'nil)
- (define-key map [kp-divide] 'nil)
- (define-key map [kp-decimal] 'nil)
- (define-key map [kp-separator] 'nil)
- (define-key map [kp-equal] 'nil)
- (define-key map [kp-tab] 'nil)
- (define-key map [kp-space] 'nil)
- (define-key map [kp-enter] 'nil)
- (define-key map [delete] 'nil)
- (define-key map [backspace] 'nil)
- (define-key map [return] 'nil)
- (define-key map [newline] 'nil)
-
;; Define keys for regexp chars * ? |.
;; Nothing special for + because it matches at least once.
(define-key map "*" 'isearch-*-char)
;;; ;; 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.
- (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-y" 'isearch-yank-kill)
(define-key map "\M-\t" 'isearch-complete)
- ;; Switching frames should terminate isearch-mode
- (define-key map [switch-frame] 'isearch-switch-frame-handler)
-
+ ;; Pass frame events transparently so they won't exit the search.
+ ;; In particular, if we have more than one display open, then a
+ ;; switch-frame might be generated by someone typing at another keyboard.
+ (define-key map [switch-frame] nil)
+ (define-key map [delete-frame] nil)
+ (define-key map [iconify-frame] nil)
+ (define-key map [make-frame-visible] nil)
+ ;; For searching multilingual text.
+ (define-key map "\C-\\" 'isearch-toggle-input-method)
+ (define-key map "\C-^" 'isearch-toggle-specified-input-method)
+
(setq isearch-mode-map map)
))
(setq minibuffer-local-isearch-map map)
))
-;;;========================================================
;; Internal variables declared globally for byte-compiler.
;; These are all set with setq while isearching
;; and bound locally while editing the search string.
(defvar isearch-other-end nil) ; Start (end) of match if forward (backward).
(defvar isearch-wrapped nil) ; Searching restarted from the top (bottom).
(defvar isearch-barrier 0)
+(defvar isearch-just-started nil)
; case-fold-search while searching.
; either nil, t, or 'yes. 'yes means the same as t except that mixed
;; Flag to indicate a yank occurred, so don't move the cursor.
(defvar isearch-yank-flag nil)
+;; Flag to indicate that we are searching multibyte characaters.
+(defvar isearch-multibyte-characters-flag nil)
+
;;; A function to be called after each input character is processed.
;;; (It is not called after characters that exit the search.)
;;; It is only set from an optional argument to `isearch-mode'.
;; New value of isearch-forward after isearch-edit-string.
(defvar isearch-new-forward nil)
+;; Accumulate here the overlays opened during searching.
+(defvar isearch-opened-overlays nil)
-;;;==============================================================
;; Minor-mode-alist changes - kind of redundant with the
;; echo area, but if isearching in multiple windows, it can be useful.
(define-key global-map "\C-r" 'isearch-backward)
(define-key esc-map "\C-r" 'isearch-backward-regexp)
-;;;===============================================================
;;; Entry points to isearch-mode.
;;; These four functions should replace those in loaddefs.el
;;; An alternative is to defalias isearch-forward etc to isearch-mode,
string and search for it.
Type \\[isearch-yank-line] to yank rest of line onto end of search string\
and search for it.
+Type \\[isearch-yank-kill] to yank the last string of killed text.
Type \\[isearch-quote-char] to quote control character to search for it.
\\[isearch-abort] while searching or when search has failed cancels input\
back to what has
options; do M-x apropos on search-.* to find them.
Other control and meta characters terminate the search
and are then executed normally (depending on `search-exit-option').
+Likewise for function keys and mouse button events.
If this function is called non-interactively, it does not return to
the calling function until the search is done."
(isearch-update))
\f
-;;;==================================================================
;; isearch-mode only sets up incremental search for the minor mode.
;; All the work is done by the isearch-mode commands.
;; Not used yet:
-;;(defconst isearch-commands '(isearch-forward isearch-backward
+;;(defvar isearch-commands '(isearch-forward isearch-backward
;; isearch-forward-regexp isearch-backward-regexp)
;; "List of commands for which isearch-mode does not recursive-edit.")
(defun isearch-mode (forward &optional regexp op-fun recursive-edit word-p)
- "Start isearch minor mode. Called by isearch-forward, etc."
+ "Start isearch minor mode. Called by `isearch-forward', etc.
+
+\\{isearch-mode-map}"
;; Initialize global vars.
(setq isearch-forward forward
(* 4 search-slow-window-lines)))
isearch-other-end nil
isearch-small-window nil
+ isearch-just-started t
+ isearch-multibyte-characters-flag nil
isearch-opoint (point)
search-ring-yank-pointer nil
+ isearch-opened-overlays nil
regexp-search-ring-yank-pointer nil)
+ (looking-at "")
(setq isearch-window-configuration
(if isearch-slow-terminal-mode (current-window-configuration) nil))
+ ;; Maybe make minibuffer frame visible and/or raise it.
+ (let ((frame (window-frame (minibuffer-window))))
+ (if (not (memq (frame-live-p frame) '(nil t)))
+ (progn
+ (make-frame-visible frame)
+ (if minibuffer-auto-raise
+ (raise-frame frame)))))
+
(setq isearch-mode " Isearch") ;; forward? regexp?
- (set-buffer-modified-p (buffer-modified-p)) ; update modeline
+ (force-mode-line-update)
(isearch-push-state)
- (make-local-variable 'overriding-local-map)
- (setq overriding-local-map isearch-mode-map)
+ (setq overriding-terminal-local-map isearch-mode-map)
(isearch-update)
(run-hooks 'isearch-mode-hook)
+ (add-hook 'mouse-leave-buffer-hook 'isearch-done)
+
;; 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.
isearch-success)
-;;;====================================================
;; Some high level utilities. Others below.
(defun isearch-update ()
isearch-yank-flag nil)
)
-
(defun isearch-done (&optional nopush edit)
+ (remove-hook 'mouse-leave-buffer-hook 'isearch-done)
;; Called by all commands that terminate isearch-mode.
;; If NOPUSH is non-nil, we don't push the string on the search ring.
- (setq overriding-local-map nil)
+ (setq overriding-terminal-local-map nil)
;; (setq pre-command-hook isearch-old-pre-command-hook) ; for lemacs
(isearch-dehighlight t)
(let ((found-start (window-start (selected-window)))
(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)))
+ (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)
- (progn
- (or (and transient-mark-mode mark-active)
- (push-mark isearch-opoint t))
- (or executing-macro (> (minibuffer-depth) 0)
- (message "Mark saved where search started")))
- ;; (message "") why is this needed?
- )
+ (or (and transient-mark-mode mark-active)
+ (progn
+ (push-mark isearch-opoint t)
+ (or executing-kbd-macro (> (minibuffer-depth) 0)
+ (message "Mark saved where search started"))))))
(setq isearch-mode nil)
- (set-buffer-modified-p (buffer-modified-p)) ;; update modeline
+ (force-mode-line-update)
(if (and (> (length isearch-string) 0) (not nopush))
;; Update the ring data.
- (if isearch-regexp
- (if (or (null regexp-search-ring)
- (not (string= isearch-string (car regexp-search-ring))))
- (progn
- (setq regexp-search-ring
- (cons isearch-string regexp-search-ring))
- (if (> (length regexp-search-ring) regexp-search-ring-max)
- (setcdr (nthcdr (1- search-ring-max) regexp-search-ring)
- nil))))
- (if (or (null search-ring)
- (not (string= isearch-string (car search-ring))))
- (progn
- (setq search-ring (cons isearch-string search-ring))
- (if (> (length search-ring) search-ring-max)
- (setcdr (nthcdr (1- search-ring-max) search-ring) nil))))))
+ (isearch-update-ring isearch-string isearch-regexp))
(run-hooks 'isearch-mode-end-hook)
(and (not edit) isearch-recursive-edit (exit-recursive-edit)))
-;;;=======================================================
+(defun isearch-update-ring (string &optional regexp)
+ "Add STRING to the beginning of the search ring.
+REGEXP says which ring to use."
+ (if regexp
+ (if (or (null regexp-search-ring)
+ (not (string= string (car regexp-search-ring))))
+ (progn
+ (setq regexp-search-ring
+ (cons string regexp-search-ring))
+ (if (> (length regexp-search-ring) regexp-search-ring-max)
+ (setcdr (nthcdr (1- search-ring-max) regexp-search-ring)
+ nil))))
+ (if (or (null search-ring)
+ (not (string= string (car search-ring))))
+ (progn
+ (setq search-ring (cons string search-ring))
+ (if (> (length search-ring) search-ring-max)
+ (setcdr (nthcdr (1- search-ring-max) search-ring) nil))))))
+
;;; Switching buffers should first terminate isearch-mode.
;;; This is done quite differently for each variant of emacs.
;;; For lemacs, see Exiting in lemacs below
(interactive) ;; Is this necessary?
;; First terminate isearch-mode.
(isearch-done)
+ (isearch-clean-overlays)
(handle-switch-frame (car (cdr (isearch-last-command-char)))))
-;;;========================================================
-
\f
-;;;====================================================
;; Commands active while inside of the isearch minor mode.
(defun isearch-exit ()
(= 0 (length isearch-string)))
(let ((isearch-nonincremental t))
(isearch-edit-string)))
- (isearch-done))
+ (isearch-done)
+ (isearch-clean-overlays))
(defun isearch-edit-string ()
;; Editing doesn't back up the search point. Should it?
(interactive)
(condition-case err
- (let ((isearch-nonincremental isearch-nonincremental)
-
- ;; Locally bind all isearch global variables to protect them
- ;; from recursive isearching.
- ;; isearch-string -message and -forward are not bound
- ;; so they may be changed. Instead, save the values.
- (isearch-new-string isearch-string)
- (isearch-new-message isearch-message)
- (isearch-new-forward isearch-forward)
- (isearch-new-word isearch-word)
-
- (isearch-regexp isearch-regexp)
- (isearch-op-fun isearch-op-fun)
- (isearch-cmds isearch-cmds)
- (isearch-success isearch-success)
- (isearch-wrapped isearch-wrapped)
- (isearch-barrier isearch-barrier)
- (isearch-adjusted isearch-adjusted)
- (isearch-yank-flag isearch-yank-flag)
- (isearch-invalid-regexp isearch-invalid-regexp)
- (isearch-within-brackets isearch-within-brackets)
- (isearch-other-end isearch-other-end)
- (isearch-opoint isearch-opoint)
- (isearch-slow-terminal-mode isearch-slow-terminal-mode)
- (isearch-small-window isearch-small-window)
- (isearch-recursive-edit isearch-recursive-edit)
- ;; Save current configuration so we can restore it here.
- (isearch-window-configuration (current-window-configuration))
- )
-
- ;; Actually terminate isearching until editing is done.
- ;; 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 t 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
- (e (let ((cursor-in-echo-area t))
- (read-event)))
- ;; Binding minibuffer-history-symbol to nil is a work-around
- ;; for some incompatibility with gmhist.
- (minibuffer-history-symbol))
- ;; If the first character the user types when we prompt them
- ;; for a string is the yank-word character, then go into
- ;; word-search mode. Otherwise unread that character and
- ;; read a key the normal way.
- ;; Word search does not apply (yet) to regexp searches,
- ;; no check is made here.
- (message (isearch-message-prefix nil nil t))
- (if (eq 'isearch-yank-word
- (lookup-key isearch-mode-map (vector e)))
- (setq isearch-word t ;; so message-prefix is right
- isearch-new-word t)
- (isearch-unread e))
- (setq cursor-in-echo-area nil)
- (setq isearch-new-string
- (let (junk-ring)
- (read-from-minibuffer
- (isearch-message-prefix nil nil isearch-nonincremental)
- isearch-string
- minibuffer-local-isearch-map nil
- 'junk-ring))
- isearch-new-message
- (mapconcat 'isearch-text-char-description
- isearch-new-string "")))
- ;; Always resume isearching by restarting it.
- (isearch-mode isearch-forward
- isearch-regexp
- isearch-op-fun
- nil
- isearch-word)
-
- ;; Copy new local values to isearch globals
- (setq isearch-string isearch-new-string
- isearch-message isearch-new-message
- isearch-forward isearch-new-forward
- isearch-word isearch-new-word))
-
- ;; Empty isearch-string means use default.
- (if (= 0 (length isearch-string))
- (setq isearch-string (car (if isearch-regexp regexp-search-ring
- search-ring)))
- ;; This used to set the last search string,
- ;; but I think it is not right to do that here.
- ;; Only the string actually used should be saved.
- )
+ (progn
+ (let ((isearch-nonincremental isearch-nonincremental)
+
+ ;; Locally bind all isearch global variables to protect them
+ ;; from recursive isearching.
+ ;; isearch-string -message and -forward are not bound
+ ;; so they may be changed. Instead, save the values.
+ (isearch-new-string isearch-string)
+ (isearch-new-message isearch-message)
+ (isearch-new-forward isearch-forward)
+ (isearch-new-word isearch-word)
+
+ (isearch-regexp isearch-regexp)
+ (isearch-op-fun isearch-op-fun)
+ (isearch-cmds isearch-cmds)
+ (isearch-success isearch-success)
+ (isearch-wrapped isearch-wrapped)
+ (isearch-barrier isearch-barrier)
+ (isearch-adjusted isearch-adjusted)
+ (isearch-yank-flag isearch-yank-flag)
+ (isearch-invalid-regexp isearch-invalid-regexp)
+ (isearch-within-brackets isearch-within-brackets)
+ ;;; Don't bind this. We want isearch-search, below, to set it.
+ ;;; And the old value won't matter after that.
+ ;;; (isearch-other-end isearch-other-end)
+ ;;; Perhaps some of these other variables should be bound for a
+ ;;; shorter period, ending before the next isearch-search.
+ ;;; But there doesn't seem to be a real bug, so let's not risk it now.
+ (isearch-opoint isearch-opoint)
+ (isearch-slow-terminal-mode isearch-slow-terminal-mode)
+ (isearch-small-window isearch-small-window)
+ (isearch-recursive-edit isearch-recursive-edit)
+ ;; Save current configuration so we can restore it here.
+ (isearch-window-configuration (current-window-configuration))
+ )
+
+ ;; Actually terminate isearching until editing is done.
+ ;; 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 t 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
+ (e (let ((cursor-in-echo-area t))
+ (read-event)))
+ ;; Binding minibuffer-history-symbol to nil is a work-around
+ ;; for some incompatibility with gmhist.
+ (minibuffer-history-symbol)
+ (message-log-max nil))
+ ;; If the first character the user types when we prompt them
+ ;; for a string is the yank-word character, then go into
+ ;; word-search mode. Otherwise unread that character and
+ ;; read a key the normal way.
+ ;; Word search does not apply (yet) to regexp searches,
+ ;; no check is made here.
+ (message (isearch-message-prefix nil nil t))
+ (if (eq 'isearch-yank-word
+ (lookup-key isearch-mode-map (vector e)))
+ (setq isearch-word t;; so message-prefix is right
+ isearch-new-word t)
+ (cancel-kbd-macro-events)
+ (isearch-unread e))
+ (setq cursor-in-echo-area nil)
+ (setq isearch-new-string
+ (let (junk-ring)
+ (read-from-minibuffer
+ (isearch-message-prefix nil nil isearch-nonincremental)
+ isearch-string
+ minibuffer-local-isearch-map nil
+ 'junk-ring))
+ isearch-new-message
+ (mapconcat 'isearch-text-char-description
+ isearch-new-string "")))
+ ;; Always resume isearching by restarting it.
+ (isearch-mode isearch-forward
+ isearch-regexp
+ isearch-op-fun
+ nil
+ isearch-word)
+
+ ;; Copy new local values to isearch globals
+ (setq isearch-string isearch-new-string
+ isearch-message isearch-new-message
+ isearch-forward isearch-new-forward
+ isearch-word isearch-new-word))
+
+ ;; Empty isearch-string means use default.
+ (if (= 0 (length isearch-string))
+ (setq isearch-string (or (car (if isearch-regexp
+ regexp-search-ring
+ search-ring))
+ ""))
+ ;; This used to set the last search string,
+ ;; but I think it is not right to do that here.
+ ;; Only the string actually used should be saved.
+ ))
+
+ ;; Push the state as of before this C-s.
+ (isearch-push-state)
;; Reinvoke the pending search.
- (isearch-push-state)
(isearch-search)
(isearch-update)
(if isearch-nonincremental
(setq isearch-new-forward nil)
(exit-minibuffer))
+(defun isearch-cancel ()
+ "Terminate the search and go back to the starting point."
+ (interactive)
+ (goto-char isearch-opoint)
+ (isearch-done t)
+ (isearch-clean-overlays)
+ (signal 'quit nil)) ; and pass on quit signal
(defun isearch-abort ()
- "Abort incremental search mode if searching is successful, signalling quit.
+ "Abort incremental search mode if searching is successful, signaling quit.
Otherwise, revert to previous successful search and continue searching.
-Use `isearch-exit' to quit without signalling."
+Use `isearch-exit' to quit without signaling."
(interactive)
;; (ding) signal instead below, if quitting
(discard-input)
;; If search is successful, move back to starting point
;; and really do quit.
(progn (goto-char isearch-opoint)
+ (setq isearch-success nil)
(isearch-done t) ; exit isearch
+ (isearch-clean-overlays)
(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))
+ ;; If search is failing, or has an incomplete regexp,
+ ;; rub out until it is once more successful.
+ (while (or (not isearch-success) isearch-invalid-regexp)
+ (isearch-pop-state))
(isearch-update)))
-
(defun isearch-repeat (direction)
;; Utility for isearch-repeat-forward and -backward.
(if (eq isearch-forward (eq direction 'forward))
;; If already have what to search for, repeat it.
(or isearch-success
(progn
-
(goto-char (if isearch-forward (point-min) (point-max)))
(setq isearch-wrapped t))))
;; C-s in reverse or C-r in forward, change direction.
(if (equal isearch-string "")
(setq isearch-success t)
- (if (and isearch-success (equal (match-end 0) (match-beginning 0)))
+ (if (and isearch-success (equal (match-end 0) (match-beginning 0))
+ (not isearch-just-started))
;; If repeating a search that found
;; an empty string, ensure we advance.
(if (if isearch-forward (eobp) (bobp))
(interactive)
(setq isearch-case-fold-search
(if isearch-case-fold-search nil 'yes))
- (message "%s%s [case %ssensitive]"
- (isearch-message-prefix nil nil isearch-nonincremental)
- isearch-message
- (if isearch-case-fold-search "in" ""))
+ (let ((message-log-max nil))
+ (message "%s%s [case %ssensitive]"
+ (isearch-message-prefix nil nil isearch-nonincremental)
+ isearch-message
+ (if isearch-case-fold-search "in" "")))
(setq isearch-adjusted t)
(sit-for 1)
(isearch-update))
(defun isearch-yank (chunk)
;; Helper for isearch-yank-word and isearch-yank-line
- ;; CHUNK should be word, line or kill.
+ ;; CHUNK should be word, line, kill, or x-sel.
(let ((string (cond
((eq chunk 'kill)
(current-kill 0))
+ ((eq chunk 'x-sel)
+ (x-get-selection))
(t
(save-excursion
(and (not isearch-forward) isearch-other-end
;; long as the match does not extend past search origin.
(if (and (not isearch-forward) (not isearch-adjusted)
(condition-case ()
- (looking-at (if isearch-regexp isearch-string
- (regexp-quote isearch-string)))
+ (let ((case-fold-search isearch-case-fold-search))
+ (looking-at (if isearch-regexp isearch-string
+ (regexp-quote isearch-string))))
(error nil))
(or isearch-yank-flag
(<= (match-end 0)
(min isearch-opoint isearch-barrier))))
- (setq isearch-success t
- isearch-invalid-regexp nil
- isearch-within-brackets nil
- isearch-other-end (match-end 0))
+ (progn
+ (setq isearch-success t
+ isearch-invalid-regexp nil
+ isearch-within-brackets nil
+ isearch-other-end (match-end 0))
+ (if (and (eq isearch-case-fold-search t) search-upper-case)
+ (setq isearch-case-fold-search
+ (isearch-no-upper-case-p isearch-string isearch-regexp))))
;; Not regexp, not reverse, or no match at point.
(if (and isearch-other-end (not isearch-adjusted))
(goto-char (if isearch-forward isearch-other-end
(progn
(setq isearch-adjusted t)
- (let ((cs (nth (if isearch-forward
- 5 ; isearch-other-end
- 2) ; saved (point)
- (car (cdr isearch-cmds)))))
- ;; (car isearch-cmds) is after last search;
- ;; (car (cdr isearch-cmds)) is from before it.
+ ;; Get the isearch-other-end from before the last search.
+ ;; We want to start from there,
+ ;; so that we don't retreat farther than that.
+ ;; (car isearch-cmds) is after last search;
+ ;; (car (cdr isearch-cmds)) is from before it.
+ (let ((cs (nth 5 (car (cdr isearch-cmds)))))
(setq cs (or cs isearch-barrier))
(goto-char
(if isearch-forward
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 ((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))
- (main-event (aref key 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))
- (not (numberp (posn-point (event-start (aref key 1)))))
- ;; Convert the event back into its raw form,
- ;; with the dummy prefix implicit in the mouse event,
- ;; so it will get split up once again.
- (progn (setq unread-command-events
- (cdr unread-command-events))
- (setq main-event (car unread-command-events))
- (setcar (cdr (event-start main-event))
- (car (nth 1 (event-start main-event))))))
- ;; 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 main-event)
- (setq window (posn-window (event-start main-event)))
- (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)))))
+ (let* ((key (this-command-keys))
+ (main-event (aref key 0))
+ (keylist (listify-key-sequence key)))
+ (cond ((and (= (length key) 1)
+ (let ((lookup (lookup-key function-key-map key)))
+ (not (or (null lookup) (integerp lookup)
+ (keymapp lookup)))))
+ ;; Handle a function key that translates into something else.
+ ;; If the key has a global definition too,
+ ;; exit and unread the key itself, so its global definition runs.
+ ;; Otherwise, unread the translation,
+ ;; so that the translated key takes effect within isearch.
+ (cancel-kbd-macro-events)
+ (if (lookup-key global-map key)
+ (progn
+ (isearch-done)
+ (apply 'isearch-unread keylist))
+ (apply 'isearch-unread
+ (listify-key-sequence (lookup-key function-key-map key)))))
+ (
+ ;; Handle an undefined shifted control character
+ ;; by downshifting it if that makes it defined.
+ ;; (As read-key-sequence would normally do,
+ ;; if we didn't have a default definition.)
+ (let ((mods (event-modifiers main-event)))
+ (and (integerp main-event)
+ (memq 'shift mods)
+ (memq 'control mods)
+ (lookup-key isearch-mode-map
+ (let ((copy (copy-sequence key)))
+ (aset copy 0
+ (- main-event (- ?\C-\S-a ?\C-a)))
+ copy)
+ nil)))
+ (setcar keylist (- main-event (- ?\C-\S-a ?\C-a)))
+ (cancel-kbd-macro-events)
+ (apply 'isearch-unread keylist))
+ ((eq search-exit-option 'edit)
+ (apply 'isearch-unread keylist)
+ (isearch-edit-string))
+ (search-exit-option
+ (let (window)
+ (cancel-kbd-macro-events)
+ (apply 'isearch-unread keylist)
+ ;; 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))
+ (not (numberp (posn-point (event-start (aref key 1)))))
+ ;; Convert the event back into its raw form,
+ ;; with the dummy prefix implicit in the mouse event,
+ ;; so it will get split up once again.
+ (progn (setq unread-command-events
+ (cdr unread-command-events))
+ (setq main-event (car unread-command-events))
+ (setcar (cdr (event-start main-event))
+ (car (nth 1 (event-start main-event))))))
+ ;; 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 main-event)
+ (setq window (posn-window (event-start main-event)))
+ (windowp window))
+ (save-excursion
+ (set-buffer (window-buffer window))
+ (isearch-done)
+ (isearch-clean-overlays))
+ (isearch-done)
+ (isearch-clean-overlays))))
+ (t;; otherwise nil
+ (isearch-process-search-string key key)))))
(defun isearch-quote-char ()
"Quote special characters for incremental search."
(defun isearch-printing-char ()
"Add this ordinary printing character to the search string and search."
(interactive)
- (isearch-process-search-char (isearch-last-command-char)))
+ (if isearch-multibyte-characters-flag
+ (isearch-process-search-multibyte-characters (isearch-last-command-char))
+ (isearch-process-search-char (isearch-last-command-char))))
(defun isearch-whitespace-chars ()
"Match all whitespace chars, if in regexp mode.
If you want to search for just a space, type C-q SPC."
(interactive)
(if isearch-regexp
- (if (and search-whitespace-regexp (not isearch-within-brackets))
+ (if (and search-whitespace-regexp (not isearch-within-brackets)
+ (not isearch-invalid-regexp))
(isearch-process-search-string search-whitespace-regexp " ")
(isearch-printing-char))
(progn
;; Append the char to the search string, update the message and re-search.
(isearch-process-search-string
(isearch-char-to-string char)
- (isearch-text-char-description char)))
+ (if (>= char 0200)
+ (char-to-string char)
+ (isearch-text-char-description char))))
(defun isearch-process-search-string (string message)
(setq isearch-string (concat isearch-string string)
(isearch-search-and-update))
\f
-;;===========================================================
;; Search Ring
(defun isearch-ring-adjust1 (advance)
(defun isearch-ring-adjust (advance)
;; Helper for isearch-ring-advance and isearch-ring-retreat
- (if (cdr isearch-cmds) ;; is there more than one thing on stack?
- (isearch-pop-state))
(isearch-ring-adjust1 advance)
- (isearch-push-state)
(if search-ring-update
(progn
(isearch-search)
(isearch-update))
(isearch-edit-string)
- ))
+ )
+ (isearch-push-state))
(defun isearch-ring-advance ()
"Advance to the next search string in the ring."
;; isearch-string stays the same
t)
((or completion ; not nil, must be a string
- (= 0 (length isearch-string))) ; shouldnt have to say this
+ (= 0 (length isearch-string))) ; shouldn't have to say this
(if (equal completion isearch-string) ;; no extension?
- (if completion-auto-help
- (with-output-to-temp-buffer "*Isearch completions*"
- (display-completion-list
- (all-completions isearch-string alist))))
- (setq isearch-string completion))
- t)
+ (progn
+ (if completion-auto-help
+ (with-output-to-temp-buffer "*Isearch completions*"
+ (display-completion-list
+ (all-completions isearch-string alist))))
+ t)
+ (and completion
+ (setq isearch-string completion))))
(t
(message "No completion") ; waits a second if in minibuffer
nil))))
(insert isearch-string))))
\f
-;;;==============================================================
;; The search status stack (and isearch window-local variables, not used).
;; Need a structure for this.
isearch-cmds)))
\f
-;;;==================================================================
;; Message string
(defun isearch-message (&optional c-q-hack ellipsis)
isearch-message
(isearch-message-suffix c-q-hack ellipsis)
)))
- (if c-q-hack m (message "%s" m))))
+ (if c-q-hack
+ m
+ (let ((message-log-max nil))
+ (message "%s" m)))))
(defun isearch-message-prefix (&optional c-q-hack ellipsis nonincremental)
;; If about to search, and previous search regexp was invalid,
;; If currently failing, display no ellipsis.
(or isearch-success (setq ellipsis nil))
(let ((m (concat (if isearch-success "" "failing ")
+ (if (and isearch-wrapped
+ (if isearch-forward
+ (> (point) isearch-opoint)
+ (< (point) isearch-opoint)))
+ "over")
(if isearch-wrapped "wrapped ")
(if isearch-word "word " "")
(if isearch-regexp "regexp " "")
(if nonincremental "search" "I-search")
- (if isearch-forward ": " " backward: ")
+ (if isearch-forward "" " backward")
+ (if isearch-multibyte-characters-flag
+ (concat " [" default-input-method-title "]: ")
+ ": ")
)))
(aset m 0 (upcase (aref m 0)))
m))
"")))
\f
-;;;========================================================
;;; Searching
(defun isearch-search ()
(isearch-no-upper-case-p isearch-string isearch-regexp)))
(condition-case lossage
(let ((inhibit-quit nil)
- (case-fold-search isearch-case-fold-search))
+ (case-fold-search isearch-case-fold-search)
+ (retry t))
(if isearch-regexp (setq isearch-invalid-regexp nil))
(setq isearch-within-brackets nil)
- (setq isearch-success
- (funcall
- (cond (isearch-word
- (if isearch-forward
- 'word-search-forward 'word-search-backward))
- (isearch-regexp
- (if isearch-forward
- 're-search-forward 're-search-backward))
- (t
- (if isearch-forward 'search-forward 'search-backward)))
- isearch-string nil t))
+ (while retry
+ (setq isearch-success
+ (funcall
+ (cond (isearch-word
+ (if isearch-forward
+ 'word-search-forward 'word-search-backward))
+ (isearch-regexp
+ (if isearch-forward
+ 're-search-forward 're-search-backward))
+ (t
+ (if isearch-forward 'search-forward 'search-backward)))
+ isearch-string nil t))
+ ;; Clear RETRY unless we matched some invisible text
+ ;; and we aren't supposed to do that.
+ (if (or (eq search-invisible t)
+ (not isearch-success)
+ (bobp) (eobp)
+ (= (match-beginning 0) (match-end 0))
+ (not (isearch-range-invisible
+ (match-beginning 0) (match-end 0))))
+ (setq retry nil)))
+ (setq isearch-just-started nil)
(if isearch-success
(setq isearch-other-end
(if isearch-forward (match-beginning 0) (match-end 0)))))
(goto-char (nth 2 (car isearch-cmds)))))
+;;; Called when opening an overlay, and we are still in isearch.
+(defun isearch-open-overlay-temporary (ov)
+ (message "temporary called")
+ (if (not (null (overlay-get ov 'isearch-open-invisible-temporary)))
+ ;; Some modes would want to open the overlays temporary during
+ ;; isearch in their own way, they should set the
+ ;; `isearch-open-invisible-temporary' to a function doing this.
+ (funcall (overlay-get ov 'isearch-open-invisible-temporary) ov nil)
+ ;; Store the values for the `invisible' and `intangible'
+ ;; properties, and then set them to nil. This way the text hidden
+ ;; by this overlay becomes visible.
+
+ ;; Do we realy need to set the `intangible' property to t? Can we
+ ;; have the point inside an overlay with an `intangible' property?
+ ;; In 19.34 this does not exist so I cannot test it.
+ (overlay-put ov 'isearch-invisible (overlay-get ov 'invisible))
+ (overlay-put ov 'isearch-intangible (overlay-get ov 'intangible))
+ (overlay-put ov 'invisible nil)
+ (overlay-put ov 'intangible nil)))
+
+
+;;; This is called at the end of isearch. I will open the overlays
+;;; that contain the latest match. Obviously in case of a C-g the
+;;; point returns to the original location which surely is not contain
+;;; in any of these overlays, se we are safe in this case too.
+(defun isearch-open-necessary-overlays (ov)
+ (let ((inside-overlay (and (> (point) (overlay-start ov))
+ (< (point) (overlay-end ov))))
+ ;; If this exists it means that the overlay was opened using
+ ;; this function, not by us tweaking the overlay properties.
+ (fct-temp (overlay-get ov 'isearch-open-invisible-temporary)))
+ (when (or inside-overlay (not fct-temp))
+ ;; restore the values for the `invisible' and `intangible'
+ ;; properties
+ (overlay-put ov 'invisible (overlay-get ov 'isearch-invisible))
+ (overlay-put ov 'intangible (overlay-get ov 'isearch-intangible))
+ (overlay-put ov 'isearch-invisible nil)
+ (overlay-put ov 'isearch-intangible nil))
+ (if inside-overlay
+ (funcall (overlay-get ov 'isearch-open-invisible) ov)
+ (if fct-temp
+ (funcall fct-temp ov t)))))
+
+;;; This is called when exiting isearch. It closes the temporary
+;;; opened overlays, except the ones that contain the latest match.
+(defun isearch-clean-overlays ()
+ (when isearch-opened-overlays
+ ;; Use a cycle instead of a mapcar here?
+ (mapcar
+ (function isearch-open-necessary-overlays) isearch-opened-overlays)
+ (setq isearch-opened-overlays nil)))
+
+;;; Verify if the current match is outside of each element of
+;;; `isearch-opened-overlays', if so close that overlay.
+(defun isearch-close-unecessary-overlays (begin end)
+ (let ((ov-list isearch-opened-overlays)
+ ov
+ inside-overlay
+ fct-temp)
+ (setq isearch-opened-overlays nil)
+ (while ov-list
+ (setq ov (car ov-list))
+ (setq ov-list (cdr ov-list))
+ (setq inside-overlay (or (and (> begin (overlay-start ov))
+ (< begin (overlay-end ov)))
+ (and (> end (overlay-start ov))
+ (< end (overlay-end ov)))))
+ ;; If this exists it means that the overlay was opened using
+ ;; this function, not by us tweaking the overlay properties.
+ (setq fct-temp (overlay-get ov 'isearch-open-invisible-temporary))
+ (if inside-overlay
+ (setq isearch-opened-overlays (cons ov isearch-opened-overlays))
+ (if fct-temp
+ (funcall fct-temp ov t)
+ (overlay-put ov 'invisible (overlay-get ov 'isearch-invisible))
+ (overlay-put ov 'intangible (overlay-get ov 'isearch-intangible))
+ (overlay-put ov 'isearch-invisible nil)
+ (overlay-put ov 'isearch-intangible nil))))))
+
+(defun isearch-range-invisible (beg end)
+ "Return t if all the bext from BEG to END is invisible."
+ (and (/= beg end)
+ ;; Check that invisibility runs up to END.
+ (save-excursion
+ (goto-char beg)
+ (let
+ ;; can-be-opened keeps track if we can open some overlays.
+ ((can-be-opened (eq search-invisible 'open))
+ ;; the list of overlays that could be opened
+ (crt-overlays nil))
+ (when (and can-be-opened isearch-hide-immediately)
+ (isearch-close-unecessary-overlays beg end))
+ ;; If the following character is currently invisible,
+ ;; skip all characters with that same `invisible' property value.
+ ;; Do that over and over.
+ (while (and (< (point) end)
+ (let ((prop
+ (get-char-property (point) 'invisible)))
+ (if (eq buffer-invisibility-spec t)
+ prop
+ (or (memq prop buffer-invisibility-spec)
+ (assq prop buffer-invisibility-spec)))))
+ (if (get-text-property (point) 'invisible)
+ (progn
+ (goto-char (next-single-property-change (point) 'invisible
+ nil end))
+ ;; if text is hidden by an `invisible' text property
+ ;; we cannot open it at all.
+ (setq can-be-opened nil))
+ (unless (null can-be-opened)
+ (let ((overlays (overlays-at (point)))
+ ov-list
+ o
+ invis-prop)
+ (while overlays
+ (setq o (car overlays)
+ invis-prop (overlay-get o 'invisible))
+ (if (or (memq invis-prop buffer-invisibility-spec)
+ (assq invis-prop buffer-invisibility-spec))
+ (if (overlay-get o 'isearch-open-invisible)
+ (setq ov-list (cons o ov-list))
+ ;; We found one overlay that cannot be
+ ;; opened, that means the whole chunk
+ ;; cannot be opened.
+ (setq can-be-opened nil)))
+ (setq overlays (cdr overlays)))
+ (if can-be-opened
+ ;; It makes sense to append to the open
+ ;; overlays list only if we know that this is
+ ;; t.
+ (setq crt-overlays (append ov-list crt-overlays))))
+ (goto-char (next-overlay-change (point))))))
+ ;; See if invisibility reaches up thru END.
+ (if (>= (point) end)
+ (if (and (not (null can-be-opened)) (consp crt-overlays))
+ (progn
+ (setq isearch-opened-overlays
+ (append isearch-opened-overlays crt-overlays))
+ ;; maybe use a cycle instead of mapcar?
+ (mapcar (function isearch-open-overlay-temporary)
+ crt-overlays)
+ nil)
+ t))))))
+
\f
-;;;========================================================
;;; Highlighting
(defvar isearch-overlay nil)
(if isearch-overlay
(delete-overlay isearch-overlay)))
-;;;===========================================================
;;; General utilities
(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 `\\\\')
+If REGEXP-FLAG is non-nil, disregard letters preceded by `\\' (but not `\\\\')
since they have special meaning in a regexp."
- (let ((case-fold-search nil))
- (not (string-match (if regexp-flag "\\(^\\|\\\\\\\\\\|[^\\]\\)[A-Z]"
- "[A-Z]")
- string))))
-
+ (let (quote-flag (i 0) (len (length string)) found)
+ (while (and (not found) (< i len))
+ (let ((char (aref string i)))
+ (if (and regexp-flag (eq char ?\\))
+ (setq quote-flag (not quote-flag))
+ (if (and (not quote-flag) (not (eq char (downcase char))))
+ (setq found t))))
+ (setq i (1+ i)))
+ (not found)))
-;;;=================================================
;; 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)
(make-string 1 c))
(isearch-char-to-string c)))
;; General function to unread characters or events.
+;; Also insert them in a keyboard macro being defined.
(defun isearch-unread (&rest char-or-events)
+ (mapcar 'store-kbd-macro-event char-or-events)
(setq unread-command-events
(append char-or-events unread-command-events)))
HCoop / bpt / emacs.git / blobdiff