]> code.delx.au - gnu-emacs/blobdiff - lisp/textmodes/flyspell.el
(flyspell-mode-map): Bind C-c $ instead of M-RET.
[gnu-emacs] / lisp / textmodes / flyspell.el
index 4e546e1ab9199976d79bf9514a940e24a732850e..a3c110b8f193e9777cd861859204da33ac552cef 100644 (file)
@@ -1,11 +1,13 @@
-;;; flyspell.el --- On-the-fly spell checker
+;;; flyspell.el --- on-the-fly spell checker
 
-;; Copyright (C) 1998 Free Software Foundation, Inc.
+;; Copyright (C) 1998, 2000, 2002, 2003, 2004,
+;;   2005, 2006 Free Software Foundation, Inc.
 
-;; Author: Manuel Serrano <Manuel.Serrano@unice.fr>
+;; Author: Manuel Serrano <Manuel.Serrano@sophia.inria.fr>
+;; Maintainer: FSF
 ;; Keywords: convenience
 
-;;; This file is part of GNU Emacs.
+;; This file is part of GNU Emacs.
 
 ;; GNU Emacs is free software; you can redistribute it and/or modify
 ;; it under the terms of the GNU General Public License as published by
 
 ;; 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, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
 
-;;; commentary:
+;;; Commentary:
 ;;
 ;; Flyspell is a minor Emacs mode performing on-the-fly spelling
 ;; checking.
-;;                                                                  
-;; To enable Flyspell minor mode, type Meta-x flyspell-mode.
+;;
+;; To enable Flyspell minor mode, type M-x flyspell-mode.
 ;; This applies only to the current buffer.
-;;                                                                  
+;;
+;; To enable Flyspell in text representing computer programs, type
+;; M-x flyspell-prog-mode.
+;; In that mode only text inside comments is checked.
+;;
 ;; Note: consider setting the variable ispell-parser to `tex' to
-;; avoid TeX command checking; use `(setq ispell-parser 'tex)'
-;; _before_ entering flyspell.
-;;                                                                  
+;; avoid TeX command checking; use `(setq ispell-parser 'tex)'.
+;;
 ;; Some user variables control the behavior of flyspell.  They are
 ;; those defined under the `User variables' comment.
-;; 
-;; Note: as suggested by Yaron M. Minsky, if you use flyspell when
-;; sending mails, you should add the following:
-;;    (add-hook 'mail-send-hook 'flyspell-mode-off)
 
 ;;; Code:
+
 (require 'ispell)
 
-;*---------------------------------------------------------------------*/
-;*    Group ...                                                        */
-;*---------------------------------------------------------------------*/
+;;*---------------------------------------------------------------------*/
+;;*    Group ...                                                        */
+;;*---------------------------------------------------------------------*/
 (defgroup flyspell nil
-  "Spellchecking on the fly."
+  "Spell checking on the fly."
   :tag "FlySpell"
   :prefix "flyspell-"
-  :group 'processes
-  :version "20.3")
+  :group 'ispell
+  :group 'processes)
 
-;*---------------------------------------------------------------------*/
-;*    User variables ...                                               */
-;*---------------------------------------------------------------------*/
+;;*---------------------------------------------------------------------*/
+;;*    User configuration ...                                           */
+;;*---------------------------------------------------------------------*/
 (defcustom flyspell-highlight-flag t
-  "*How Flyspell should indicate misspelled words.
+  "How Flyspell should indicate misspelled words.
 Non-nil means use highlight, nil means use minibuffer messages."
   :group 'flyspell
   :type 'boolean)
 
 (defcustom flyspell-mark-duplications-flag t
-  "*Non-nil means Flyspell reports a repeated word as an error."
+  "Non-nil means Flyspell reports a repeated word as an error.
+Detection of repeated words is not implemented in
+\"large\" regions; see `flyspell-large-region'."
   :group 'flyspell
   :type 'boolean)
 
-(defcustom flyspell-sort-corrections t
-  "*Non-nil means, sort the corrections alphabetically before popping them."
+(defcustom flyspell-sort-corrections nil
+  "Non-nil means, sort the corrections alphabetically before popping them."
   :group 'flyspell
+  :version "21.1"
   :type 'boolean)
 
-(defcustom flyspell-duplicate-distance 10000
-  "*The maximum distance for finding duplicates of unrecognized words.
+(defcustom flyspell-duplicate-distance -1
+  "The maximum distance for finding duplicates of unrecognized words.
 This applies to the feature that when a word is not found in the dictionary,
 if the same spelling occurs elsewhere in the buffer,
-Flyspell uses a different face (`flyspell-duplicate-face') to highlight it.
+Flyspell uses a different face (`flyspell-duplicate') to highlight it.
 This variable specifies how far to search to find such a duplicate.
 -1 means no limit (search the whole buffer).
 0 means do not search for duplicate unrecognized spellings."
   :group 'flyspell
+  :version "21.1"
   :type 'number)
 
 (defcustom flyspell-delay 3
-  "*The number of seconds to wait before checking, after a \"delayed\" command."
+  "The number of seconds to wait before checking, after a \"delayed\" command."
   :group 'flyspell
   :type 'number)
 
 (defcustom flyspell-persistent-highlight t
-  "*Non-nil means misspelled words remain highlighted until corrected.
+  "Non-nil means misspelled words remain highlighted until corrected.
 If this variable is nil, only the most recently detected misspelled word
 is highlighted."
   :group 'flyspell
   :type 'boolean)
 
 (defcustom flyspell-highlight-properties t
-  "*Non-nil means highlight incorrect words even if a property exists for this word."
+  "Non-nil means highlight incorrect words even if a property exists for this word."
   :group 'flyspell
   :type 'boolean)
 
 (defcustom flyspell-default-delayed-commands
   '(self-insert-command
     delete-backward-char
-    delete-char)
+    backward-or-forward-delete-char
+    delete-char
+    scrollbar-vertical-drag
+    backward-delete-char-untabify)
   "The standard list of delayed commands for Flyspell.
 See `flyspell-delayed-commands'."
   :group 'flyspell
+  :version "21.1"
   :type '(repeat (symbol)))
 
 (defcustom flyspell-delayed-commands nil
@@ -117,170 +127,346 @@ whose length is specified by `flyspell-delay'."
   :group 'flyspell
   :type '(repeat (symbol)))
 
+(defcustom flyspell-default-deplacement-commands
+  '(next-line
+    previous-line
+    scroll-up
+    scroll-down)
+  "The standard list of deplacement commands for Flyspell.
+See `flyspell-deplacement-commands'."
+  :group 'flyspell
+  :version "21.1"
+  :type '(repeat (symbol)))
+
+(defcustom flyspell-deplacement-commands nil
+  "List of commands that are \"deplacement\" for Flyspell mode.
+After these commands, Flyspell checking is performed only if the previous
+command was not the very same command."
+  :group 'flyspell
+  :version "21.1"
+  :type '(repeat (symbol)))
+
 (defcustom flyspell-issue-welcome-flag t
-  "*Non-nil means that Flyspell should display a welcome message when started."
+  "Non-nil means that Flyspell should display a welcome message when started."
   :group 'flyspell
   :type 'boolean)
 
-(defcustom flyspell-consider-dash-as-word-delimiter-flag nil
-  "*Non-nil means that the `-' char is considered as a word delimiter."
+(defcustom flyspell-issue-message-flag t
+  "Non-nil means that Flyspell emits messages when checking words."
   :group 'flyspell
   :type 'boolean)
 
 (defcustom flyspell-incorrect-hook nil
-  "*List of functions to be called when incorrect words are encountered.
-Each function is given two arguments: the beginning and the end
-of the incorrect region."
-  :group 'flyspell)
+  "List of functions to be called when incorrect words are encountered.
+Each function is given three arguments.  The first two
+arguments are the beginning and the end of the incorrect region.
+The third is either the symbol `doublon' or the list
+of possible corrections as returned by `ispell-parse-output'.
+
+If any of the functions return non-nil, the word is not highlighted as
+incorrect."
+  :group 'flyspell
+  :version "21.1"
+  :type 'hook)
+
+(defcustom flyspell-default-dictionary nil
+  "A string that is the name of the default dictionary.
+This is passed to the `ispell-change-dictionary' when flyspell is started.
+If the variable `ispell-local-dictionary' or `ispell-dictionary' is non-nil
+when flyspell is started, the value of that variable is used instead
+of `flyspell-default-dictionary' to select the default dictionary.
+Otherwise, if `flyspell-default-dictionary' is nil, it means to use
+Ispell's ultimate default dictionary."
+  :group 'flyspell
+  :version "21.1"
+  :type '(choice string (const :tag "Default" nil)))
 
-(defcustom flyspell-multi-language-p nil
-  "*Non-nil means that Flyspell can be used with multiple languages.
-This mode works by starting a separate Ispell process for each buffer,
-so that each buffer can use its own language."
+(defcustom flyspell-tex-command-regexp
+  "\\(\\(begin\\|end\\)[ \t]*{\\|\\(cite[a-z*]*\\|label\\|ref\\|eqref\\|usepackage\\|documentclass\\)[ \t]*\\(\\[[^]]*\\]\\)?{[^{}]*\\)"
+  "A string that is the regular expression that matches TeX commands."
+  :group 'flyspell
+  :version "21.1"
+  :type 'string)
+
+(defcustom flyspell-check-tex-math-command nil
+  "Non-nil means check even inside TeX math environment.
+TeX math environments are discovered by the TEXMATHP that implemented
+inside the texmathp.el Emacs package.  That package may be found at:
+http://strw.leidenuniv.nl/~dominik/Tools"
   :group 'flyspell
   :type 'boolean)
 
-;*---------------------------------------------------------------------*/
-;*    Mode specific options                                            */
-;*    -------------------------------------------------------------    */
-;*    Mode specific options enable users to disable flyspell on        */
-;*    certain word depending of the emacs mode. For instance, when     */
-;*    using flyspell with mail-mode add the following expression       */
-;*    in your .emacs file:                                             */
-;*       (add-hook 'mail-mode                                          */
-;*          '(lambda () (setq flyspell-generic-check-word-p           */
-;*                            'mail-mode-flyspell-verify)))           */
-;*---------------------------------------------------------------------*/
-(defvar flyspell-generic-check-word-p nil
+(defcustom flyspell-dictionaries-that-consider-dash-as-word-delimiter
+  '("francais" "deutsch8" "norsk")
+  "List of dictionary names that consider `-' as word delimiter."
+  :group 'flyspell
+  :version "21.1"
+  :type '(repeat (string)))
+
+(defcustom flyspell-abbrev-p
+  nil
+  "If non-nil, add correction to abbreviation table."
+  :group 'flyspell
+  :version "21.1"
+  :type 'boolean)
+
+(defcustom flyspell-use-global-abbrev-table-p
+  nil
+  "If non-nil, prefer global abbrev table to local abbrev table."
+  :group 'flyspell
+  :version "21.1"
+  :type 'boolean)
+
+(defcustom flyspell-mode-line-string " Fly"
+  "String displayed on the modeline when flyspell is active.
+Set this to nil if you don't want a modeline indicator."
+  :group 'flyspell
+  :type '(choice string (const :tag "None" nil)))
+
+(defcustom flyspell-large-region 1000
+  "The threshold that determines if a region is small.
+If the region is smaller than this number of characters,
+`flyspell-region' checks the words sequentially using regular
+flyspell methods.  Else, if the region is large, a new Ispell process is
+spawned for speed.
+
+Doubled words are not detected in a large region, because Ispell
+does not check for them.
+
+If `flyspell-large-region' is nil, all regions are treated as small."
+  :group 'flyspell
+  :version "21.1"
+  :type '(choice number (const :tag "All small" nil)))
+
+(defcustom flyspell-insert-function (function insert)
+  "Function for inserting word by flyspell upon correction."
+  :group 'flyspell
+  :type 'function)
+
+(defcustom flyspell-before-incorrect-word-string nil
+  "String used to indicate an incorrect word starting."
+  :group 'flyspell
+  :type '(choice string (const nil)))
+
+(defcustom flyspell-after-incorrect-word-string nil
+  "String used to indicate an incorrect word ending."
+  :group 'flyspell
+  :type '(choice string (const nil)))
+
+(defcustom flyspell-use-meta-tab t
+  "Non-nil means that flyspell uses M-TAB to correct word."
+  :group 'flyspell
+  :type 'boolean)
+
+(defcustom flyspell-auto-correct-binding
+  [(control ?\;)]
+  "The key binding for flyspell auto correction."
+  :group 'flyspell)
+
+;;*---------------------------------------------------------------------*/
+;;*    Mode specific options                                            */
+;;*    -------------------------------------------------------------    */
+;;*    Mode specific options enable users to disable flyspell on        */
+;;*    certain word depending of the emacs mode. For instance, when     */
+;;*    using flyspell with mail-mode add the following expression       */
+;;*    in your .emacs file:                                             */
+;;*       (add-hook 'mail-mode                                          */
+;;*                 '(lambda () (setq flyspell-generic-check-word-predicate    */
+;;*                                   'mail-mode-flyspell-verify)))            */
+;;*---------------------------------------------------------------------*/
+(defvar flyspell-generic-check-word-predicate nil
   "Function providing per-mode customization over which words are flyspelled.
 Returns t to continue checking, nil otherwise.
 Flyspell mode sets this variable to whatever is the `flyspell-mode-predicate'
 property of the major mode name.")
-(make-variable-buffer-local 'flyspell-generic-check-word-p)
+(make-variable-buffer-local 'flyspell-generic-check-word-predicate)
+(defvaralias 'flyspell-generic-check-word-p
+  'flyspell-generic-check-word-predicate)
 
+;;*--- mail mode -------------------------------------------------------*/
 (put 'mail-mode 'flyspell-mode-predicate 'mail-mode-flyspell-verify)
 (put 'message-mode 'flyspell-mode-predicate 'mail-mode-flyspell-verify)
 (defun mail-mode-flyspell-verify ()
-  "This function is used for `flyspell-generic-check-word-p' in Mail mode."
-  (save-excursion
-    (or (progn
-         (beginning-of-line)
-         (looking-at "Subject:"))
-       (not (or (re-search-forward mail-header-separator nil t)
-                (re-search-backward message-signature-separator nil t)
-                (progn
-                  (beginning-of-line)
-                  (looking-at "[>}|]")))))))
-
+  "Function used for `flyspell-generic-check-word-predicate' in Mail mode."
+  (let ((header-end (save-excursion
+                     (goto-char (point-min))
+                     (re-search-forward
+                      (concat "^"
+                              (regexp-quote mail-header-separator)
+                              "$")
+                      nil t)
+                     (point)))
+       (signature-begin (save-excursion
+                          (goto-char (point-max))
+                          (re-search-backward message-signature-separator
+                                              nil t)
+                          (point))))
+    (cond ((< (point) header-end)
+          (and (save-excursion (beginning-of-line)
+                               (looking-at "^Subject:"))
+               (> (point) (match-end 0))))
+         ((> (point) signature-begin)
+          nil)
+         (t
+          (save-excursion
+            (beginning-of-line)
+            (not (looking-at "[>}|]\\|To:")))))))
+
+;;*--- texinfo mode ----------------------------------------------------*/
 (put 'texinfo-mode 'flyspell-mode-predicate 'texinfo-mode-flyspell-verify)
 (defun texinfo-mode-flyspell-verify ()
-  "This function is used for `flyspell-generic-check-word-p' in Texinfo mode."
+  "Function used for `flyspell-generic-check-word-predicate' in Texinfo mode."
   (save-excursion
     (forward-word -1)
     (not (looking-at "@"))))
 
-;*---------------------------------------------------------------------*/
-;*    Overlay compatibility                                            */
-;*---------------------------------------------------------------------*/
-(autoload 'make-overlay        "overlay" "" t)
-(autoload 'move-overlay        "overlay" "" t)
-(autoload 'overlayp            "overlay" "" t)
-(autoload 'overlay-properties  "overlay" "" t)
-(autoload 'overlays-in         "overlay" "" t)
-(autoload 'delete-overlay      "overlay" "" t)
-(autoload 'overlays-at         "overlay" "" t)
-(autoload 'overlay-put         "overlay" "" t)
-(autoload 'overlay-get         "overlay" "" t)
-
-;*---------------------------------------------------------------------*/
-;*    Which emacs are we currently running                             */
-;*---------------------------------------------------------------------*/
-(defvar flyspell-emacs
-  (cond
-   ((string-match "XEmacs" emacs-version)
-    'xemacs)
-   (t
-    'emacs))
-  "The type of Emacs we are currently running.")
-
-(defvar flyspell-use-local-map
-  (or (eq flyspell-emacs 'xemacs)
-      (not (string< emacs-version "20"))))
-
-;*---------------------------------------------------------------------*/
-;*    The minor mode declaration.                                      */
-;*---------------------------------------------------------------------*/
-(defvar flyspell-mode nil)
-(make-variable-buffer-local 'flyspell-mode)
-
-(defvar flyspell-mode-map (make-sparse-keymap))
-(defvar flyspell-mouse-map (make-sparse-keymap))
-
-(or (assoc 'flyspell-mode minor-mode-alist)
-    (setq minor-mode-alist
-         (cons '(flyspell-mode " Fly") minor-mode-alist)))
-
-;; mouse or local-map bindings
-(cond
- ((eq flyspell-emacs 'xemacs)
-  (define-key flyspell-mouse-map [(button2)]
-    (function flyspell-correct-word/mouse-keymap))
-  (define-key flyspell-mouse-map "\M-\t" 'flyspell-auto-correct-word))
- (flyspell-use-local-map
-  (define-key flyspell-mouse-map [(mouse-2)]
-    (function flyspell-correct-word/mouse-keymap))
-  (define-key flyspell-mouse-map "\M-\t" 'flyspell-auto-correct-word))
- (t
-  (or (assoc 'flyspell-mode minor-mode-map-alist)
-      (setq minor-mode-map-alist
-         (cons (cons 'flyspell-mode flyspell-mode-map)
-               minor-mode-map-alist)))
-  (define-key flyspell-mode-map "\M-\t" 'flyspell-auto-correct-word)
-  (define-key flyspell-mode-map [(mouse-2)]
-    (function flyspell-correct-word/local-keymap))))
-
-;; the name of the overlay property that defines the keymap
-(defvar flyspell-overlay-keymap-property-name
-  (if (string-match "19.*XEmacs" emacs-version)
-      'keymap
-    'local-map))
-   
-;*---------------------------------------------------------------------*/
-;*    Highlighting                                                     */
-;*---------------------------------------------------------------------*/
-(defface flyspell-incorrect-face
+;;*--- tex mode --------------------------------------------------------*/
+(put 'tex-mode 'flyspell-mode-predicate 'tex-mode-flyspell-verify)
+(defun tex-mode-flyspell-verify ()
+  "Function used for `flyspell-generic-check-word-predicate' in LaTeX mode."
+  (and
+   (not (save-excursion
+         (re-search-backward "^[ \t]*%%%[ \t]+Local" nil t)))
+   (not (save-excursion
+         (let ((this (point-marker))
+               (e (progn (end-of-line) (point-marker))))
+           (beginning-of-line)
+           (if (re-search-forward "\\\\\\(cite\\|label\\|ref\\){[^}]*}" e t)
+               (and (>= this (match-beginning 0))
+                    (<= this (match-end 0)) )))))))
+
+;;*--- sgml mode -------------------------------------------------------*/
+(put 'sgml-mode 'flyspell-mode-predicate 'sgml-mode-flyspell-verify)
+(put 'html-mode 'flyspell-mode-predicate 'sgml-mode-flyspell-verify)
+
+(defun sgml-mode-flyspell-verify ()
+  "Function used for `flyspell-generic-check-word-predicate' in SGML mode."
+  (not (save-excursion
+        (let ((this (point-marker))
+              (s (progn (beginning-of-line) (point-marker)))
+              (e (progn (end-of-line) (point-marker))))
+          (or (progn
+                (goto-char this)
+                (and (re-search-forward  "[^<]*>" e t)
+                     (= (match-beginning 0) this)))
+              (progn
+                (goto-char this)
+                (and (re-search-backward "<[^>]*" s t)
+                     (= (match-end 0) this)))
+              (and (progn
+                     (goto-char this)
+                     (and (re-search-forward  "[^&]*;" e t)
+                          (= (match-beginning 0) this)))
+                   (progn
+                     (goto-char this)
+                     (and (re-search-backward "&[^;]*" s t)
+                          (= (match-end 0) this)))))))))
+
+;;*---------------------------------------------------------------------*/
+;;*    Programming mode                                                 */
+;;*---------------------------------------------------------------------*/
+(defvar flyspell-prog-text-faces
+  '(font-lock-string-face font-lock-comment-face font-lock-doc-face)
+  "Faces corresponding to text in programming-mode buffers.")
+
+(defun flyspell-generic-progmode-verify ()
+  "Used for `flyspell-generic-check-word-predicate' in programming modes."
+  (let ((f (get-text-property (point) 'face)))
+    (memq f flyspell-prog-text-faces)))
+
+;;;###autoload
+(defun flyspell-prog-mode ()
+  "Turn on `flyspell-mode' for comments and strings."
+  (interactive)
+  (setq flyspell-generic-check-word-predicate
+        'flyspell-generic-progmode-verify)
+  (flyspell-mode 1)
+  (run-hooks 'flyspell-prog-mode-hook))
+
+;;*---------------------------------------------------------------------*/
+;;*    Overlay compatibility                                            */
+;;*---------------------------------------------------------------------*/
+(autoload 'make-overlay            "overlay" "Overlay compatibility kit." t)
+(autoload 'overlayp                "overlay" "Overlay compatibility kit." t)
+(autoload 'overlays-in             "overlay" "Overlay compatibility kit." t)
+(autoload 'delete-overlay          "overlay" "Overlay compatibility kit." t)
+(autoload 'overlays-at             "overlay" "Overlay compatibility kit." t)
+(autoload 'overlay-put             "overlay" "Overlay compatibility kit." t)
+(autoload 'overlay-get             "overlay" "Overlay compatibility kit." t)
+(autoload 'previous-overlay-change "overlay" "Overlay compatibility kit." t)
+
+;;*---------------------------------------------------------------------*/
+;;*    The minor mode declaration.                                      */
+;;*---------------------------------------------------------------------*/
+(defvar flyspell-mouse-map
+  (let ((map (make-sparse-keymap)))
+    (define-key map (if (featurep 'xemacs) [button2] [down-mouse-2])
+      #'flyspell-correct-word)
+    map)
+  "Keymap for Flyspell to put on erroneous words.")
+
+(defvar flyspell-mode-map
+  (let ((map (make-sparse-keymap)))
+    (if flyspell-use-meta-tab
+      (define-key map "\M-\t" 'flyspell-auto-correct-word))
+    (define-key map flyspell-auto-correct-binding 'flyspell-auto-correct-previous-word)
+    (define-key map [(control ?\,)] 'flyspell-goto-next-error)
+    (define-key map [(control ?\.)] 'flyspell-auto-correct-word)
+    (define-key map [?\C-c ?$] 'flyspell-correct-word-before-point)
+    map)
+  "Minor mode keymap for Flyspell mode--for the whole buffer.")
+
+;; dash character machinery
+(defvar flyspell-consider-dash-as-word-delimiter-flag nil
+   "*Non-nil means that the `-' char is considered as a word delimiter.")
+(make-variable-buffer-local 'flyspell-consider-dash-as-word-delimiter-flag)
+(defvar flyspell-dash-dictionary nil)
+(make-variable-buffer-local 'flyspell-dash-dictionary)
+(defvar flyspell-dash-local-dictionary nil)
+(make-variable-buffer-local 'flyspell-dash-local-dictionary)
+
+;;*---------------------------------------------------------------------*/
+;;*    Highlighting                                                     */
+;;*---------------------------------------------------------------------*/
+(defface flyspell-incorrect
   '((((class color)) (:foreground "OrangeRed" :bold t :underline t))
     (t (:bold t)))
-  "Face used for marking a misspelled word in Flyspell."
+  "Face used to display a misspelled word in Flyspell."
   :group 'flyspell)
+;; backward-compatibility alias
+(put 'flyspell-incorrect-face 'face-alias 'flyspell-incorrect)
 
-(defface flyspell-duplicate-face
+(defface flyspell-duplicate
   '((((class color)) (:foreground "Gold3" :bold t :underline t))
     (t (:bold t)))
-  "Face used for marking a misspelled word that appears twice in the buffer.
+  "Face used to display subsequent occurrences of a misspelled word.
 See also `flyspell-duplicate-distance'."
   :group 'flyspell)
+;; backward-compatibility alias
+(put 'flyspell-duplicate-face 'face-alias 'flyspell-duplicate)
 
 (defvar flyspell-overlay nil)
 
-;*---------------------------------------------------------------------*/
-;*    flyspell-mode ...                                                */
-;*---------------------------------------------------------------------*/
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-mode ...                                                */
+;;*---------------------------------------------------------------------*/
+;;;###autoload(defvar flyspell-mode nil)
 ;;;###autoload
-(defun flyspell-mode (&optional arg)
+(define-minor-mode flyspell-mode
   "Minor mode performing on-the-fly spelling checking.
-Ispell is automatically spawned on background for each entered words.
+This spawns a single Ispell process and checks each word.
 The default flyspell behavior is to highlight incorrect words.
 With no argument, this command toggles Flyspell mode.
 With a prefix argument ARG, turn Flyspell minor mode on iff ARG is positive.
-  
+
 Bindings:
 \\[ispell-word]: correct words (using Ispell).
 \\[flyspell-auto-correct-word]: automatically correct word.
-\\[flyspell-correct-word] (or mouse-2): popup correct words.
+\\[flyspell-auto-correct-previous-word]: automatically correct the last misspelled word.
+\\[flyspell-correct-word] (or down-mouse-2): popup correct words.
 
 Hooks:
-flyspell-mode-hook is run after flyspell is entered.
+This runs `flyspell-mode-hook' after flyspell is entered.
 
 Remark:
 `flyspell-mode' uses `ispell-mode'.  Thus all Ispell options are
@@ -292,155 +478,212 @@ consider adding:
 \(add-hook 'tex-mode-hook (function (lambda () (setq ispell-parser 'tex))))
 in your .emacs file.
 
-flyspell-region checks all words inside a region.
-
-flyspell-buffer checks the whole buffer."
-  (interactive "P")
-  (let ((old-flyspell-mode flyspell-mode))
-    ;; Mark the mode as on or off.
-    (setq flyspell-mode (not (or (and (null arg) flyspell-mode)
-                                (<= (prefix-numeric-value arg) 0))))
-    ;; Do the real work.
-    (unless (eq flyspell-mode old-flyspell-mode)
-      (if flyspell-mode
-         (flyspell-mode-on)
-       (flyspell-mode-off))
-      ;; Force modeline redisplay.
-      (set-buffer-modified-p (buffer-modified-p)))))
-
-;*---------------------------------------------------------------------*/
-;*    flyspell-mode-on ...                                             */
-;*---------------------------------------------------------------------*/
+\\[flyspell-region] checks all words inside a region.
+\\[flyspell-buffer] checks the whole buffer."
+  :lighter flyspell-mode-line-string
+  :keymap flyspell-mode-map
+  :group 'flyspell
+  (if flyspell-mode
+      (flyspell-mode-on)
+    (flyspell-mode-off)))
+
+;;;###autoload
+(defun turn-on-flyspell ()
+  "Unconditionally turn on Flyspell mode."
+  (flyspell-mode 1))
+
+;;;###autoload
+(defun turn-off-flyspell ()
+  "Unconditionally turn off Flyspell mode."
+  (flyspell-mode -1))
+
+(custom-add-option 'text-mode-hook 'turn-on-flyspell)
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-buffers ...                                             */
+;;*    -------------------------------------------------------------    */
+;;*    For remembering buffers running flyspell                         */
+;;*---------------------------------------------------------------------*/
+(defvar flyspell-buffers nil)
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-minibuffer-p ...                                        */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-minibuffer-p (buffer)
+  "Is BUFFER a minibuffer?"
+  (let ((ws (get-buffer-window-list buffer t)))
+    (and (consp ws) (window-minibuffer-p (car ws)))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-accept-buffer-local-defs ...                            */
+;;*---------------------------------------------------------------------*/
+(defvar flyspell-last-buffer nil
+  "The buffer in which the last flyspell operation took place.")
+
+(defun flyspell-accept-buffer-local-defs (&optional force)
+  ;; When flyspell-word is used inside a loop (e.g. when processing
+  ;; flyspell-changes), the calls to `ispell-accept-buffer-local-defs' end
+  ;; up dwarfing everything else, so only do it when the buffer has changed.
+  (when (or force (not (eq flyspell-last-buffer (current-buffer))))
+    (setq flyspell-last-buffer (current-buffer))
+    ;; Strange problem:  If buffer in current window has font-lock turned on,
+    ;; but SET-BUFFER was called to point to an invisible buffer, this ispell
+    ;; call will reset the buffer to the buffer in the current window.
+    ;; However, it only happens at startup (fix by Albert L. Ting).
+    (save-current-buffer
+      (ispell-accept-buffer-local-defs))
+    (unless (and (eq flyspell-dash-dictionary ispell-dictionary)
+                 (eq flyspell-dash-local-dictionary ispell-local-dictionary))
+      ;; The dictionary has changed
+      (setq flyspell-dash-dictionary ispell-dictionary)
+      (setq flyspell-dash-local-dictionary ispell-local-dictionary)
+      (setq flyspell-consider-dash-as-word-delimiter-flag
+            (member (or ispell-local-dictionary ispell-dictionary)
+                    flyspell-dictionaries-that-consider-dash-as-word-delimiter)))))
+
+(defun flyspell-kill-ispell-hook ()
+  (setq flyspell-last-buffer nil)
+  (dolist (buf (buffer-list))
+    (with-current-buffer buf
+      (kill-local-variable 'flyspell-word-cache-word))))
+
+;; Make sure we flush our caches when needed.  Do it here rather than in
+;; flyspell-mode-on, since flyspell-region may be used without ever turning
+;; on flyspell-mode.
+(add-hook 'ispell-kill-ispell-hook 'flyspell-kill-ispell-hook)
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-mode-on ...                                             */
+;;*---------------------------------------------------------------------*/
 (defun flyspell-mode-on ()
   "Turn Flyspell mode on.  Do not use this; use `flyspell-mode' instead."
-  (setq ispell-highlight-face 'flyspell-incorrect-face)
-  ;; ispell initialization
-  (if flyspell-multi-language-p
-      (progn
-       (make-variable-buffer-local 'ispell-dictionary)
-       (make-variable-buffer-local 'ispell-process)
-       (make-variable-buffer-local 'ispell-filter)
-       (make-variable-buffer-local 'ispell-filter-continue)
-       (make-variable-buffer-local 'ispell-process-directory)
-       (make-variable-buffer-local 'ispell-parser)
-       (put 'ispell-dictionary 'permanent-local t)
-       (put 'ispell-process 'permanent-local t)
-       (put 'ispell-filter 'permanent-local t)
-       (put 'ispell-filter-continue 'permanent-local t)
-       (put 'ispell-process-directory 'permanent-local t)
-       (put 'ispell-parser 'permanent-local t)))
-  ;; We put the `flyspell-delayed' property on some commands.
+  (ispell-maybe-find-aspell-dictionaries)
+  (setq ispell-highlight-face 'flyspell-incorrect)
+  ;; local dictionaries setup
+  (or ispell-local-dictionary ispell-dictionary
+      (if flyspell-default-dictionary
+         (ispell-change-dictionary flyspell-default-dictionary)))
+  ;; we have to force ispell to accept the local definition or
+  ;; otherwise it could be too late, the local dictionary may
+  ;; be forgotten!
+  ;; Pass the `force' argument for the case where flyspell was active already
+  ;; but the buffer's local-defs have been edited.
+  (flyspell-accept-buffer-local-defs 'force)
+  ;; we put the `flyspell-delayed' property on some commands
   (flyspell-delay-commands)
+  ;; we put the `flyspell-deplacement' property on some commands
+  (flyspell-deplacement-commands)
   ;; we bound flyspell action to post-command hook
-  (make-local-hook 'post-command-hook)
   (add-hook 'post-command-hook (function flyspell-post-command-hook) t t)
   ;; we bound flyspell action to pre-command hook
-  (make-local-hook 'pre-command-hook)
   (add-hook 'pre-command-hook (function flyspell-pre-command-hook) t t)
-
-  ;; Set flyspell-generic-check-word-p based on the major mode.
+  ;; we bound flyspell action to after-change hook
+  (add-hook 'after-change-functions 'flyspell-after-change-function nil t)
+  ;; set flyspell-generic-check-word-predicate based on the major mode
   (let ((mode-predicate (get major-mode 'flyspell-mode-predicate)))
     (if mode-predicate
-       (setq flyspell-generic-check-word-p mode-predicate)))
+       (setq flyspell-generic-check-word-predicate mode-predicate)))
   ;; the welcome message
-  (if flyspell-issue-welcome-flag
+  (if (and flyspell-issue-message-flag
+          flyspell-issue-welcome-flag
+          (interactive-p))
       (let ((binding (where-is-internal 'flyspell-auto-correct-word
                                        nil 'non-ascii)))
-       (message
+       (message "%s"
         (if binding
-            (format "Welcome to flyspell.  Use %s or Mouse-2 to correct words."
+            (format "Welcome to flyspell. Use %s or Mouse-2 to correct words."
                     (key-description binding))
-          "Welcome to flyspell.  Use Mouse-2 to correct words."))))
-  ;; we have to kill the flyspell process when the buffer is deleted.
-  ;; (thanks to Jeff Miller and Roland Rosenfeld who sent me this
-  ;; improvement).
-  (add-hook 'kill-buffer-hook
-           '(lambda ()
-              (if (and flyspell-multi-language-p ispell-process)
-                  (ispell-kill-ispell t))))
-  (make-local-hook 'change-major-mode-hook)
-  (add-hook 'change-major-mode-hook 'flyspell-mode-off)
+          "Welcome to flyspell. Use Mouse-2 to correct words."))))
   ;; we end with the flyspell hooks
   (run-hooks 'flyspell-mode-hook))
 
-;*---------------------------------------------------------------------*/
-;*    flyspell-delay-commands ...                                      */
-;*---------------------------------------------------------------------*/
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-delay-commands ...                                      */
+;;*---------------------------------------------------------------------*/
 (defun flyspell-delay-commands ()
   "Install the standard set of Flyspell delayed commands."
   (mapcar 'flyspell-delay-command flyspell-default-delayed-commands)
   (mapcar 'flyspell-delay-command flyspell-delayed-commands))
 
-;*---------------------------------------------------------------------*/
-;*    flyspell-delay-command ...                                       */
-;*---------------------------------------------------------------------*/
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-delay-command ...                                       */
+;;*---------------------------------------------------------------------*/
 (defun flyspell-delay-command (command)
   "Set COMMAND to be delayed, for Flyspell.
 When flyspell `post-command-hook' is invoked because a delayed command
-as been used the current word is not immediatly checked.
+as been used the current word is not immediately checked.
 It will be checked only after `flyspell-delay' seconds."
   (interactive "SDelay Flyspell after Command: ")
   (put command 'flyspell-delayed t))
 
-;*---------------------------------------------------------------------*/
-;*    flyspell-ignore-commands ...                                     */
-;*---------------------------------------------------------------------*/
-(defun flyspell-ignore-commands ()
-  "This is an obsolete function, use `flyspell-delay-commands' instead."
-  (flyspell-delay-commands))
-
-;*---------------------------------------------------------------------*/
-;*    flyspell-ignore-command ...                                      */
-;*---------------------------------------------------------------------*/
-(defun flyspell-ignore-command (command)
-  "This is an obsolete function, use `flyspell-delay-command' instead.
-COMMAND is the name of the command to be delayed."
-  (flyspell-delay-command command))
-
-(make-obsolete 'flyspell-ignore-commands 'flyspell-delay-commands)
-(make-obsolete 'flyspell-ignore-command 'flyspell-delay-command)
-
-;*---------------------------------------------------------------------*/
-;*    flyspell-word-cache ...                                          */
-;*---------------------------------------------------------------------*/
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-deplacement-commands ...                                */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-deplacement-commands ()
+  "Install the standard set of Flyspell deplacement commands."
+  (mapcar 'flyspell-deplacement-command flyspell-default-deplacement-commands)
+  (mapcar 'flyspell-deplacement-command flyspell-deplacement-commands))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-deplacement-command ...                                 */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-deplacement-command (command)
+  "Set COMMAND that implement cursor movements, for Flyspell.
+When flyspell `post-command-hook' is invoked because of a deplacement command
+as been used the current word is checked only if the previous command was
+not the very same deplacement command."
+  (interactive "SDeplacement Flyspell after Command: ")
+  (put command 'flyspell-deplacement t))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-word-cache ...                                          */
+;;*---------------------------------------------------------------------*/
 (defvar flyspell-word-cache-start  nil)
 (defvar flyspell-word-cache-end    nil)
 (defvar flyspell-word-cache-word   nil)
+(defvar flyspell-word-cache-result '_)
 (make-variable-buffer-local 'flyspell-word-cache-start)
 (make-variable-buffer-local 'flyspell-word-cache-end)
 (make-variable-buffer-local 'flyspell-word-cache-word)
-
-;*---------------------------------------------------------------------*/
-;*    The flyspell pre-hook, store the current position. In the        */
-;*    post command hook, we will check, if the word at this position   */
-;*    has to be spell checked.                                         */
-;*---------------------------------------------------------------------*/
-(defvar flyspell-pre-buffer nil)
-(defvar flyspell-pre-point  nil)
-
-;*---------------------------------------------------------------------*/
-;*    flyspell-pre-command-hook ...                                    */
-;*---------------------------------------------------------------------*/
+(make-variable-buffer-local 'flyspell-word-cache-result)
+
+;;*---------------------------------------------------------------------*/
+;;*    The flyspell pre-hook, store the current position. In the        */
+;;*    post command hook, we will check, if the word at this position   */
+;;*    has to be spell checked.                                         */
+;;*---------------------------------------------------------------------*/
+(defvar flyspell-pre-buffer     nil)
+(defvar flyspell-pre-point      nil)
+(defvar flyspell-pre-column     nil)
+(defvar flyspell-pre-pre-buffer nil)
+(defvar flyspell-pre-pre-point  nil)
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-previous-command ...                                    */
+;;*---------------------------------------------------------------------*/
+(defvar flyspell-previous-command nil
+  "The last interactive command checked by Flyspell.")
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-pre-command-hook ...                                    */
+;;*---------------------------------------------------------------------*/
 (defun flyspell-pre-command-hook ()
   "Save the current buffer and point for Flyspell's post-command hook."
   (interactive)
   (setq flyspell-pre-buffer (current-buffer))
-  (setq flyspell-pre-point  (point)))
+  (setq flyspell-pre-point  (point))
+  (setq flyspell-pre-column (current-column)))
 
-;*---------------------------------------------------------------------*/
-;*    flyspell-mode-off ...                                            */
-;*---------------------------------------------------------------------*/
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-mode-off ...                                            */
+;;*---------------------------------------------------------------------*/
 ;;;###autoload
 (defun flyspell-mode-off ()
   "Turn Flyspell mode off."
-  ;; If we have an Ispell process for each buffer,
-  ;; kill the one for this buffer.
-  (if flyspell-multi-language-p
-      (ispell-kill-ispell t))
   ;; we remove the hooks
   (remove-hook 'post-command-hook (function flyspell-post-command-hook) t)
   (remove-hook 'pre-command-hook (function flyspell-pre-command-hook) t)
+  (remove-hook 'after-change-functions 'flyspell-after-change-function t)
   ;; we remove all the flyspell hilightings
   (flyspell-delete-all-overlays)
   ;; we have to erase pre cache variables
@@ -449,45 +692,11 @@ COMMAND is the name of the command to be delayed."
   ;; we mark the mode as killed
   (setq flyspell-mode nil))
 
-;*---------------------------------------------------------------------*/
-;*    flyspell-check-word-p ...                                        */
-;*---------------------------------------------------------------------*/
-(defun flyspell-check-word-p ()
-  "Return t when the word at `point' has to be checked.
-The answer depends of several criteria.
-Mostly we check word delimiters."
-  (cond
-   ((<= (- (point-max) 1) (point-min))
-    ;; the buffer is not filled enough
-    nil)
-   ((not (and (symbolp this-command) (get this-command 'flyspell-delayed)))
-    ;; the current command is not delayed, that
-    ;; is that we must check the word now
-    t)
-   ((and (> (point) (point-min))
-        (save-excursion
-          (backward-char 1)
-          (and (looking-at (flyspell-get-not-casechars))
-               (or flyspell-consider-dash-as-word-delimiter-flag
-                   (not (looking-at "\\-"))))))
-    ;; yes because we have reached or typed a word delimiter.
-    t)
-   ((not (integerp flyspell-delay))
-    ;; yes because the user had set up a no-delay configuration.
-    t)
-   (executing-kbd-macro
-    ;; Don't delay inside a keyboard macro.
-    t)
-   (t
-    (if (fboundp 'about-xemacs)
-       (sit-for flyspell-delay nil)
-      (sit-for flyspell-delay 0 nil)))))
-
-;*---------------------------------------------------------------------*/
-;*    flyspell-check-pre-word-p ...                                    */
-;*---------------------------------------------------------------------*/
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-check-pre-word-p ...                                    */
+;;*---------------------------------------------------------------------*/
 (defun flyspell-check-pre-word-p ()
-  "Return non-nil if we should to check the word before point.
+  "Return non-nil if we should check the word before point.
 More precisely, it applies to the word that was before point
 before the current command."
   (cond
@@ -495,11 +704,23 @@ before the current command."
        (not (bufferp flyspell-pre-buffer))
        (not (buffer-live-p flyspell-pre-buffer)))
     nil)
+   ((and (eq flyspell-pre-pre-point flyspell-pre-point)
+        (eq flyspell-pre-pre-buffer flyspell-pre-buffer))
+    nil)
    ((or (and (= flyspell-pre-point (- (point) 1))
             (eq (char-syntax (char-after flyspell-pre-point)) ?w))
        (= flyspell-pre-point (point))
        (= flyspell-pre-point (+ (point) 1)))
     nil)
+   ((and (symbolp this-command)
+        (not executing-kbd-macro)
+        (or (get this-command 'flyspell-delayed)
+            (and (get this-command 'flyspell-deplacement)
+                 (eq flyspell-previous-command this-command)))
+        (or (= (current-column) 0)
+            (= (current-column) flyspell-pre-column)
+            (eq (char-syntax (char-after flyspell-pre-point)) ?w)))
+    nil)
    ((not (eq (current-buffer) flyspell-pre-buffer))
     t)
    ((not (and (numberp flyspell-word-cache-start)
@@ -508,62 +729,307 @@ before the current command."
    (t
     (or (< flyspell-pre-point flyspell-word-cache-start)
        (> flyspell-pre-point flyspell-word-cache-end)))))
-  
-;*---------------------------------------------------------------------*/
-;*    flyspell-post-command-hook ...                                   */
-;*---------------------------------------------------------------------*/
+
+;;*---------------------------------------------------------------------*/
+;;*    The flyspell after-change-hook, store the change position. In    */
+;;*    the post command hook, we will check, if the word at this        */
+;;*    position has to be spell checked.                                */
+;;*---------------------------------------------------------------------*/
+(defvar flyspell-changes nil)
+(make-variable-buffer-local 'flyspell-changes)
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-after-change-function ...                               */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-after-change-function (start stop len)
+  "Save the current buffer and point for Flyspell's post-command hook."
+  (push (cons start stop) flyspell-changes))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-check-changed-word-p ...                                */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-check-changed-word-p (start stop)
+  "Return t when the changed word has to be checked.
+The answer depends of several criteria.
+Mostly we check word delimiters."
+  (cond
+   ((and (memq (char-after start) '(?\n ? )) (> stop start))
+    t)
+   ((not (numberp flyspell-pre-point))
+    t)
+   ((and (>= flyspell-pre-point start) (<= flyspell-pre-point stop))
+    nil)
+   ((let ((pos (point)))
+      (or (>= pos start) (<= pos stop) (= pos (1+ stop))))
+    nil)
+   (t
+    t)))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-check-word-p ...                                        */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-check-word-p ()
+  "Return t when the word at `point' has to be checked.
+The answer depends of several criteria.
+Mostly we check word delimiters."
+  (cond
+   ((<= (- (point-max) 1) (point-min))
+    ;; the buffer is not filled enough
+    nil)
+   ((and (and (> (current-column) 0)
+             (not (eq (current-column) flyspell-pre-column)))
+        (save-excursion
+          (backward-char 1)
+          (and (looking-at (flyspell-get-not-casechars))
+               (or flyspell-consider-dash-as-word-delimiter-flag
+                   (not (looking-at "-"))))))
+    ;; yes because we have reached or typed a word delimiter.
+    t)
+   ((symbolp this-command)
+    (cond
+     ((get this-command 'flyspell-deplacement)
+      (not (eq flyspell-previous-command this-command)))
+     ((get this-command 'flyspell-delayed)
+      ;; the current command is not delayed, that
+      ;; is that we must check the word now
+      (and (not unread-command-events)
+          (sit-for flyspell-delay)))
+     (t t)))
+   (t t)))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-debug-signal-no-check ...                               */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-debug-signal-no-check (msg obj)
+  (setq debug-on-error t)
+  (with-current-buffer (get-buffer-create "*flyspell-debug*")
+    (erase-buffer)
+    (insert "NO-CHECK:\n")
+    (insert (format "    %S : %S\n" msg obj))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-debug-signal-pre-word-checked ...                       */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-debug-signal-pre-word-checked ()
+  (setq debug-on-error t)
+  (with-current-buffer (get-buffer-create "*flyspell-debug*")
+    (insert "PRE-WORD:\n")
+    (insert (format "  pre-point  : %S\n" flyspell-pre-point))
+    (insert (format "  pre-buffer : %S\n" flyspell-pre-buffer))
+    (insert (format "  cache-start: %S\n" flyspell-word-cache-start))
+    (insert (format "  cache-end  : %S\n" flyspell-word-cache-end))
+    (goto-char (point-max))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-debug-signal-word-checked ...                           */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-debug-signal-word-checked ()
+  (setq debug-on-error t)
+  (let ((oldbuf (current-buffer))
+        (point  (point)))
+    (with-current-buffer (get-buffer-create "*flyspell-debug*")
+      (insert "WORD:\n")
+      (insert (format "  this-cmd   : %S\n" this-command))
+      (insert (format "  delayed    : %S\n" (and (symbolp this-command)
+                                                (get this-command 'flyspell-delayed))))
+      (insert (format "  point      : %S\n" point))
+      (insert (format "  prev-char  : [%c] %S\n"
+                     (with-current-buffer oldbuf
+                       (let ((c (if (> (point) (point-min))
+                                    (save-excursion
+                                      (backward-char 1)
+                                      (char-after (point)))
+                                  ? )))
+                         c))
+                     (with-current-buffer oldbuf
+                       (let ((c (if (> (point) (point-min))
+                                    (save-excursion
+                                      (backward-char 1)
+                                      (and (and (looking-at (flyspell-get-not-casechars)) 1)
+                                           (and (or flyspell-consider-dash-as-word-delimiter-flag
+                                                    (not (looking-at "\\-"))) 2))))))
+                         c))))
+      (insert (format "  because    : %S\n"
+                     (cond
+                      ((not (and (symbolp this-command)
+                                 (get this-command 'flyspell-delayed)))
+                       ;; the current command is not delayed, that
+                       ;; is that we must check the word now
+                       'not-delayed)
+                      ((with-current-buffer oldbuf
+                         (let ((c (if (> (point) (point-min))
+                                      (save-excursion
+                                        (backward-char 1)
+                                        (and (looking-at (flyspell-get-not-casechars))
+                                             (or flyspell-consider-dash-as-word-delimiter-flag
+                                                 (not (looking-at "\\-"))))))))
+                           c))
+                       ;; yes because we have reached or typed a word delimiter.
+                       'separator)
+                      ((not (integerp flyspell-delay))
+                       ;; yes because the user had set up a no-delay configuration.
+                       'no-delay)
+                      (t
+                       'sit-for))))
+      (goto-char (point-max)))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-debug-signal-changed-checked ...                        */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-debug-signal-changed-checked ()
+  (setq debug-on-error t)
+  (let ((point  (point)))
+    (with-current-buffer (get-buffer-create "*flyspell-debug*")
+      (insert "CHANGED WORD:\n")
+      (insert (format "  point   : %S\n" point))
+      (goto-char (point-max)))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-post-command-hook ...                                   */
+;;*    -------------------------------------------------------------    */
+;;*    It is possible that we check several words:                      */
+;;*    1- the current word is checked if the predicate                  */
+;;*       FLYSPELL-CHECK-WORD-P is true                                 */
+;;*    2- the word that used to be the current word before the          */
+;;*       THIS-COMMAND is checked if:                                   */
+;;*        a- the previous word is different from the current word      */
+;;*        b- the previous word as not just been checked by the         */
+;;*           previous FLYSPELL-POST-COMMAND-HOOK                       */
+;;*    3- the words changed by the THIS-COMMAND that are neither the    */
+;;*       previous word nor the current word                            */
+;;*---------------------------------------------------------------------*/
 (defun flyspell-post-command-hook ()
   "The `post-command-hook' used by flyspell to check a word in-the-fly."
   (interactive)
-  (if (flyspell-check-word-p)
-      (flyspell-word))
-  (if (flyspell-check-pre-word-p)
-      (save-excursion
-       (set-buffer flyspell-pre-buffer)
-       (save-excursion
-         (goto-char flyspell-pre-point)
-         (flyspell-word)))))
-
-;*---------------------------------------------------------------------*/
-;*    flyspell-word ...                                                */
-;*---------------------------------------------------------------------*/
+  (let ((command this-command)
+       ;; Prevent anything we do from affecting the mark.
+       deactivate-mark)
+    (if (flyspell-check-pre-word-p)
+       (with-current-buffer flyspell-pre-buffer
+         '(flyspell-debug-signal-pre-word-checked)
+         (save-excursion
+           (goto-char flyspell-pre-point)
+           (flyspell-word))))
+    (if (flyspell-check-word-p)
+       (progn
+         '(flyspell-debug-signal-word-checked)
+         (flyspell-word)
+         ;; we remember which word we have just checked.
+         ;; this will be used next time we will check a word
+         ;; to compare the next current word with the word
+         ;; that as been registered in the pre-command-hook
+         ;; that is these variables are used within the predicate
+         ;; FLYSPELL-CHECK-PRE-WORD-P
+         (setq flyspell-pre-pre-buffer (current-buffer))
+         (setq flyspell-pre-pre-point  (point)))
+      (progn
+       (setq flyspell-pre-pre-buffer nil)
+       (setq flyspell-pre-pre-point  nil)
+       ;; when a word is not checked because of a delayed command
+       ;; we do not disable the ispell cache.
+       (if (and (symbolp this-command) (get this-command 'flyspell-delayed))
+           (progn
+             (setq flyspell-word-cache-end -1)
+             (setq flyspell-word-cache-result '_)))))
+    (while (and (not (input-pending-p)) (consp flyspell-changes))
+      (let ((start (car (car flyspell-changes)))
+           (stop  (cdr (car flyspell-changes))))
+       (if (flyspell-check-changed-word-p start stop)
+           (save-excursion
+             '(flyspell-debug-signal-changed-checked)
+             (goto-char start)
+             (flyspell-word)))
+       (setq flyspell-changes (cdr flyspell-changes))))
+    (setq flyspell-previous-command command)))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-notify-misspell ...                                     */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-notify-misspell (word poss)
+  (let ((replacements (if (stringp poss)
+                         poss
+                       (if flyspell-sort-corrections
+                           (sort (car (cdr (cdr poss))) 'string<)
+                         (car (cdr (cdr poss)))))))
+    (if flyspell-issue-message-flag
+       (message "misspelling `%s'  %S" word replacements))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-word-search-backward ...                                */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-word-search-backward (word bound)
+  (save-excursion
+    (let ((r '())
+         (inhibit-point-motion-hooks t)
+         p)
+      (while (and (not r) (setq p (search-backward word bound t)))
+       (let ((lw (flyspell-get-word '())))
+         (if (and (consp lw) (string-equal (car lw) word))
+             (setq r p)
+           (goto-char p))))
+      r)))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-word-search-forward ...                                 */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-word-search-forward (word bound)
+  (save-excursion
+    (let ((r '())
+         (inhibit-point-motion-hooks t)
+         p)
+      (while (and (not r) (setq p (search-forward word bound t)))
+       (let ((lw (flyspell-get-word '())))
+         (if (and (consp lw) (string-equal (car lw) word))
+             (setq r p)
+           (goto-char (1+ p)))))
+      r)))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-word ...                                                */
+;;*---------------------------------------------------------------------*/
 (defun flyspell-word (&optional following)
   "Spell check a word."
-  (interactive (list current-prefix-arg))
-  (if (interactive-p)
-      (setq following ispell-following-word))
+  (interactive (list ispell-following-word))
   (save-excursion
-    (ispell-accept-buffer-local-defs)  ; use the correct dictionary
-    (let ((cursor-location (point))    ; retain cursor location
-         (word (flyspell-get-word following))
-         start end poss)
-      (if (or (eq word nil)
-             (and (fboundp flyspell-generic-check-word-p)
-                  (not (funcall flyspell-generic-check-word-p))))
+    ;; use the correct dictionary
+    (flyspell-accept-buffer-local-defs)
+    (let* ((cursor-location (point))
+           (flyspell-word (flyspell-get-word following))
+           start end poss word ispell-filter)
+      (if (or (eq flyspell-word nil)
+             (and (fboundp flyspell-generic-check-word-predicate)
+                  (not (funcall flyspell-generic-check-word-predicate))))
          t
        (progn
-         ;; destructure return word info list.
-         (setq start (car (cdr word))
-               end (car (cdr (cdr word)))
-               word (car word))
+         ;; destructure return flyspell-word info list.
+         (setq start (car (cdr flyspell-word))
+               end (car (cdr (cdr flyspell-word)))
+               word (car flyspell-word))
          ;; before checking in the directory, we check for doublons.
          (cond
-          ((and flyspell-mark-duplications-flag
+          ((and (or (not (eq ispell-parser 'tex))
+                    (and (> start (point-min))
+                         (not (memq (char-after (1- start)) '(?\} ?\\)))))
+                flyspell-mark-duplications-flag
                 (save-excursion
                   (goto-char start)
-                  (word-search-backward word
-                                        (- start
-                                           (+ 1 (- end start)))
-                                        t)))
+                  (let* ((bound
+                          (- start
+                             (- end start)
+                             (- (skip-chars-backward " \t\n\f"))))
+                         (p (when (>= bound (point-min))
+                              (flyspell-word-search-backward word bound))))
+                    (and p (/= p start)))))
            ;; yes, this is a doublon
-           (flyspell-highlight-incorrect-region start end))
+           (flyspell-highlight-incorrect-region start end 'doublon)
+           nil)
           ((and (eq flyspell-word-cache-start start)
                 (eq flyspell-word-cache-end end)
                 (string-equal flyspell-word-cache-word word))
            ;; this word had been already checked, we skip
-           nil)
+           flyspell-word-cache-result)
           ((and (eq ispell-parser 'tex)
-                (flyspell-tex-command-p word))
+                (flyspell-tex-command-p flyspell-word))
            ;; this is a correct word (because a tex command)
            (flyspell-unhighlight-at start)
            (if (> end start)
@@ -575,272 +1041,596 @@ before the current command."
            (setq flyspell-word-cache-end end)
            (setq flyspell-word-cache-word word)
            ;; now check spelling of word.
-           (process-send-string ispell-process "%\n")
+           (ispell-send-string "%\n")
            ;; put in verbose mode
-           (process-send-string ispell-process
-                                (concat "^" word "\n"))
+           (ispell-send-string (concat "^" word "\n"))
            ;; we mark the ispell process so it can be killed
            ;; when emacs is exited without query
-           (if (fboundp 'process-kill-without-query)
-               (process-kill-without-query ispell-process))
-           ;; wait until ispell has processed word
-           (while (progn
-                    (accept-process-output ispell-process)
-                    (not (string= "" (car ispell-filter)))))
-           ;; (process-send-string ispell-process "!\n")
+           (set-process-query-on-exit-flag ispell-process nil)
+           ;; Wait until ispell has processed word.  Since this code is often
+            ;; executed from post-command-hook but the ispell process may not
+            ;; be responsive, it's important to make sure we re-enable C-g.
+           (with-local-quit
+             (while (progn
+                      (accept-process-output ispell-process)
+                      (not (string= "" (car ispell-filter))))))
+           ;; (ispell-send-string "!\n")
            ;; back to terse mode.
+           ;; Remove leading empty element
            (setq ispell-filter (cdr ispell-filter))
-           (if (listp ispell-filter)
+           ;; ispell process should return something after word is sent.
+           ;; Tag word as valid (i.e., skip) otherwise
+           (or ispell-filter
+               (setq ispell-filter '(*)))
+           (if (consp ispell-filter)
                (setq poss (ispell-parse-output (car ispell-filter))))
-           (cond ((eq poss t)
-                  ;; correct
-                  (flyspell-unhighlight-at start)
-                  (if (> end start)
-                      (flyspell-unhighlight-at (- end 1)))
-                  t)
-                 ((and (stringp poss) flyspell-highlight-flag)
-                  ;; correct
-                  (flyspell-unhighlight-at start)
-                  (if (> end start)
-                      (flyspell-unhighlight-at (- end 1)))
-                  t)
-                 ((null poss)
-                  (flyspell-unhighlight-at start)
-                  (if (> end start)
-                      (flyspell-unhighlight-at (- end 1)))
-                  (message "Error in ispell process"))
-                 ((or (and (< flyspell-duplicate-distance 0)
-                           (or (save-excursion
-                                 (goto-char start)
-                                 (word-search-backward word
-                                                       (point-min)
-                                                       t))
-                               (save-excursion
-                                 (goto-char end)
-                                 (word-search-forward word
-                                                      (point-max)
-                                                      t))))
-                      (and (> flyspell-duplicate-distance 0)
-                           (or (save-excursion
-                                 (goto-char start)
-                                 (word-search-backward
-                                  word
-                                  (- start
-                                     flyspell-duplicate-distance)
-                                  t))
-                               (save-excursion
-                                 (goto-char end)
-                                 (word-search-forward
-                                  word
-                                  (+ end
-                                     flyspell-duplicate-distance)
-                                  t)))))
-                  (if flyspell-highlight-flag
-                      (flyspell-highlight-duplicate-region start end)
-                    (message (format "duplicate `%s'" word))))
-                 (t
-                  ;; incorrect highlight the location
-                  (if flyspell-highlight-flag
-                      (flyspell-highlight-incorrect-region start end)
-                    (message (format "mispelling `%s'" word)))))
-           (goto-char cursor-location) ; return to original location
-           (if ispell-quit (setq ispell-quit nil)))))))))
-
-;*---------------------------------------------------------------------*/
-;*    flyspell-tex-command-p ...                                       */
-;*---------------------------------------------------------------------*/
+           (let ((res (cond ((eq poss t)
+                             ;; correct
+                             (setq flyspell-word-cache-result t)
+                             (flyspell-unhighlight-at start)
+                             (if (> end start)
+                                 (flyspell-unhighlight-at (- end 1)))
+                             t)
+                            ((and (stringp poss) flyspell-highlight-flag)
+                             ;; correct
+                             (setq flyspell-word-cache-result t)
+                             (flyspell-unhighlight-at start)
+                             (if (> end start)
+                                 (flyspell-unhighlight-at (- end 1)))
+                             t)
+                            ((null poss)
+                             (setq flyspell-word-cache-result t)
+                             (flyspell-unhighlight-at start)
+                             (if (> end start)
+                                 (flyspell-unhighlight-at (- end 1)))
+                             t)
+                            ((or (and (< flyspell-duplicate-distance 0)
+                                      (or (save-excursion
+                                            (goto-char start)
+                                            (flyspell-word-search-backward
+                                             word
+                                             (point-min)))
+                                          (save-excursion
+                                            (goto-char end)
+                                            (flyspell-word-search-forward
+                                             word
+                                             (point-max)))))
+                                 (and (> flyspell-duplicate-distance 0)
+                                      (or (save-excursion
+                                            (goto-char start)
+                                            (flyspell-word-search-backward
+                                             word
+                                             (- start
+                                                flyspell-duplicate-distance)))
+                                          (save-excursion
+                                            (goto-char end)
+                                            (flyspell-word-search-forward
+                                             word
+                                             (+ end
+                                                flyspell-duplicate-distance))))))
+                             ;; This is a misspelled word which occurs
+                             ;; twice within flyspell-duplicate-distance.
+                             (setq flyspell-word-cache-result nil)
+                             (if flyspell-highlight-flag
+                                 (flyspell-highlight-duplicate-region
+                                  start end poss)
+                               (message "duplicate `%s'" word))
+                             nil)
+                            (t
+                             (setq flyspell-word-cache-result nil)
+                             ;; incorrect highlight the location
+                             (if flyspell-highlight-flag
+                                 (flyspell-highlight-incorrect-region
+                                  start end poss)
+                               (flyspell-notify-misspell word poss))
+                             nil))))
+             ;; return to original location
+             (goto-char cursor-location)
+             (if ispell-quit (setq ispell-quit nil))
+             res))))))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-tex-math-initialized ...                                */
+;;*---------------------------------------------------------------------*/
+(defvar flyspell-tex-math-initialized nil)
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-math-tex-command-p ...                                  */
+;;*    -------------------------------------------------------------    */
+;;*    This function uses the texmathp package to check if (point)      */
+;;*    is within a tex command. In order to avoid using                 */
+;;*    condition-case each time we use the variable                     */
+;;*    flyspell-tex-math-initialized to make a special case the first   */
+;;*    time that function is called.                                    */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-math-tex-command-p ()
+  (when (fboundp 'texmathp)
+    (cond
+     (flyspell-check-tex-math-command
+      nil)
+     ((eq flyspell-tex-math-initialized t)
+      (texmathp))
+     ((eq flyspell-tex-math-initialized 'error)
+      nil)
+     (t
+      (setq flyspell-tex-math-initialized t)
+      (condition-case nil
+          (texmathp)
+        (error (progn
+                 (setq flyspell-tex-math-initialized 'error)
+                 nil)))))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-tex-command-p ...                                       */
+;;*---------------------------------------------------------------------*/
 (defun flyspell-tex-command-p (word)
   "Return t if WORD is a TeX command."
-  (eq (aref word 0) ?\\))
-
-;*---------------------------------------------------------------------*/
-;*    flyspell-casechars-cache ...                                     */
-;*---------------------------------------------------------------------*/
+  (or (save-excursion
+       (let ((b  (car (cdr word))))
+         (and (re-search-backward "\\\\" (- (point) 100) t)
+              (or (= (match-end 0) b)
+                  (and (goto-char (match-end 0))
+                       (looking-at flyspell-tex-command-regexp)
+                       (>= (match-end 0) b))))))
+      (flyspell-math-tex-command-p)))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-casechars-cache ...                                     */
+;;*---------------------------------------------------------------------*/
 (defvar flyspell-casechars-cache nil)
 (defvar flyspell-ispell-casechars-cache nil)
 (make-variable-buffer-local 'flyspell-casechars-cache)
 (make-variable-buffer-local 'flyspell-ispell-casechars-cache)
 
-;*---------------------------------------------------------------------*/
-;*    flyspell-get-casechars ...                                       */
-;*---------------------------------------------------------------------*/
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-get-casechars ...                                       */
+;;*---------------------------------------------------------------------*/
 (defun flyspell-get-casechars ()
   "This function builds a string that is the regexp of word chars.
 In order to avoid one useless string construction,
 this function changes the last char of the `ispell-casechars' string."
   (let ((ispell-casechars (ispell-get-casechars)))
     (cond
-     ((eq ispell-casechars flyspell-ispell-casechars-cache)
-      flyspell-casechars-cache)
-     ((not (eq ispell-parser 'tex))
+     ((eq ispell-parser 'tex)
       (setq flyspell-ispell-casechars-cache ispell-casechars)
       (setq flyspell-casechars-cache
            (concat (substring ispell-casechars
                               0
                               (- (length ispell-casechars) 1))
-                   "{}]"))
+                   "]"))
       flyspell-casechars-cache)
      (t
       (setq flyspell-ispell-casechars-cache ispell-casechars)
       (setq flyspell-casechars-cache ispell-casechars)
       flyspell-casechars-cache))))
-       
-;*---------------------------------------------------------------------*/
-;*    flyspell-get-not-casechars-cache ...                             */
-;*---------------------------------------------------------------------*/
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-get-not-casechars-cache ...                             */
+;;*---------------------------------------------------------------------*/
 (defvar flyspell-not-casechars-cache nil)
 (defvar flyspell-ispell-not-casechars-cache nil)
 (make-variable-buffer-local 'flyspell-not-casechars-cache)
 (make-variable-buffer-local 'flyspell-ispell-not-casechars-cache)
 
-;*---------------------------------------------------------------------*/
-;*    flyspell-get-not-casechars ...                                   */
-;*---------------------------------------------------------------------*/
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-get-not-casechars ...                                   */
+;;*---------------------------------------------------------------------*/
 (defun flyspell-get-not-casechars ()
   "This function builds a string that is the regexp of non-word chars."
   (let ((ispell-not-casechars (ispell-get-not-casechars)))
     (cond
-     ((eq ispell-not-casechars flyspell-ispell-not-casechars-cache)
-      flyspell-not-casechars-cache)
-     ((not (eq ispell-parser 'tex))
+     ((eq ispell-parser 'tex)
       (setq flyspell-ispell-not-casechars-cache ispell-not-casechars)
       (setq flyspell-not-casechars-cache
            (concat (substring ispell-not-casechars
                               0
                               (- (length ispell-not-casechars) 1))
-                   "{}]"))
+                   "]"))
       flyspell-not-casechars-cache)
      (t
       (setq flyspell-ispell-not-casechars-cache ispell-not-casechars)
       (setq flyspell-not-casechars-cache ispell-not-casechars)
       flyspell-not-casechars-cache))))
 
-;*---------------------------------------------------------------------*/
-;*    flyspell-get-word ...                                            */
-;*---------------------------------------------------------------------*/
-(defun flyspell-get-word (following)
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-get-word ...                                            */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-get-word (following &optional extra-otherchars)
   "Return the word for spell-checking according to Ispell syntax.
-If optional argument FOLLOWING is non-nil or if `ispell-following-word'
+If optional argument FOLLOWING is non-nil or if `flyspell-following-word'
 is non-nil when called interactively, then the following word
 \(rather than preceding\) is checked when the cursor is not over a word.
 Optional second argument contains otherchars that can be included in word
 many times.
 
-Word syntax described by `ispell-dictionary-alist' (which see)."
+Word syntax described by `flyspell-dictionary-alist' (which see)."
   (let* ((flyspell-casechars (flyspell-get-casechars))
         (flyspell-not-casechars (flyspell-get-not-casechars))
         (ispell-otherchars (ispell-get-otherchars))
         (ispell-many-otherchars-p (ispell-get-many-otherchars-p))
-        (word-regexp (if (not (string= "" ispell-otherchars))
-                         (concat 
-                          flyspell-casechars
-                          "+\\("
-                          ispell-otherchars
-                          "?"
-                          flyspell-casechars
-                          "+\\)"
-                          (if ispell-many-otherchars-p
-                              "*" "?"))
-                       (concat flyspell-casechars "+")))
-        (tex-prelude "[\\\\{]")
-        (tex-regexp  (if (eq ispell-parser 'tex)
-                         (concat tex-prelude "?" word-regexp "}?")
-                       word-regexp))
-                     
-        did-it-once
+        (word-regexp (concat flyspell-casechars
+                             "+\\("
+                             (if (not (string= "" ispell-otherchars))
+                                 (concat ispell-otherchars "?"))
+                             (if extra-otherchars
+                                 (concat extra-otherchars "?"))
+                             flyspell-casechars
+                             "+\\)"
+                             (if (or ispell-many-otherchars-p
+                                     extra-otherchars)
+                                 "*" "?")))
+        did-it-once prevpt
         start end word)
     ;; find the word
-    (if (not (or (looking-at flyspell-casechars)
-                (and (eq ispell-parser 'tex)
-                     (looking-at tex-prelude))))
+    (if (not (looking-at flyspell-casechars))
        (if following
-           (re-search-forward flyspell-casechars (point-max) t)
-         (re-search-backward flyspell-casechars (point-min) t)))
+           (re-search-forward flyspell-casechars nil t)
+         (re-search-backward flyspell-casechars nil t)))
     ;; move to front of word
-    (re-search-backward flyspell-not-casechars (point-min) 'start)
-    (if (not (string= "" ispell-otherchars))
-       (let ((pos nil))
-         (while (and (looking-at ispell-otherchars)
-                     (not (bobp))
-                     (or (not did-it-once)
-                         ispell-many-otherchars-p)
-                     (not (eq pos (point))))
-           (setq pos (point))
-           (setq did-it-once t)
+    (re-search-backward flyspell-not-casechars nil 'start)
+    (while (and (or (and (not (string= "" ispell-otherchars))
+                        (looking-at ispell-otherchars))
+                   (and extra-otherchars (looking-at extra-otherchars)))
+               (not (bobp))
+               (or (not did-it-once)
+                   ispell-many-otherchars-p)
+               (not (eq prevpt (point))))
+      (if (and extra-otherchars (looking-at extra-otherchars))
+         (progn
            (backward-char 1)
            (if (looking-at flyspell-casechars)
-               (re-search-backward flyspell-not-casechars (point-min) 'move)
-             (backward-char -1)))))
+               (re-search-backward flyspell-not-casechars nil 'move)))
+       (setq did-it-once t
+             prevpt (point))
+       (backward-char 1)
+       (if (looking-at flyspell-casechars)
+           (re-search-backward flyspell-not-casechars nil 'move)
+         (backward-char -1))))
     ;; Now mark the word and save to string.
-    (if (eq (re-search-forward tex-regexp (point-max) t) nil)
+    (if (not (re-search-forward word-regexp nil t))
        nil
       (progn
        (setq start (match-beginning 0)
              end (point)
-             word (buffer-substring start end))
+             word (buffer-substring-no-properties start end))
        (list word start end)))))
 
-;*---------------------------------------------------------------------*/
-;*    flyspell-region ...                                              */
-;*---------------------------------------------------------------------*/
-(defun flyspell-region (beg end)
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-small-region ...                                        */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-small-region (beg end)
   "Flyspell text between BEG and END."
-  (interactive "r")
   (save-excursion
-  (if (> beg end)
-      (let ((old beg))
-       (setq beg end)
-       (setq end old)))
+    (if (> beg end)
+       (let ((old beg))
+         (setq beg end)
+         (setq end old)))
     (goto-char beg)
     (let ((count 0))
       (while (< (point) end)
-       (if (= count 100)
+       (if (and flyspell-issue-message-flag (= count 100))
            (progn
              (message "Spell Checking...%d%%"
                       (* 100 (/ (float (- (point) beg)) (- end beg))))
              (setq count 0))
          (setq count (+ 1 count)))
        (flyspell-word)
+       (sit-for 0)
        (let ((cur (point)))
          (forward-word 1)
          (if (and (< (point) end) (> (point) (+ cur 1)))
              (backward-char 1)))))
     (backward-char 1)
-    (message "Spell Checking...done")
+    (if flyspell-issue-message-flag (message "Spell Checking completed."))
     (flyspell-word)))
 
-;*---------------------------------------------------------------------*/
-;*    flyspell-buffer ...                                              */
-;*---------------------------------------------------------------------*/
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-external-ispell-process ...                             */
+;;*---------------------------------------------------------------------*/
+(defvar flyspell-external-ispell-process '()
+  "The external Flyspell Ispell process.")
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-external-ispell-buffer ...                              */
+;;*---------------------------------------------------------------------*/
+(defvar flyspell-external-ispell-buffer '())
+(defvar flyspell-large-region-buffer '())
+(defvar flyspell-large-region-beg (point-min))
+(defvar flyspell-large-region-end (point-max))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-external-point-words ...                                */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-external-point-words ()
+  "Mark words from a buffer listing incorrect words in order of appearance.
+The list of incorrect words should be in `flyspell-external-ispell-buffer'.
+\(We finish by killing that buffer and setting the variable to nil.)
+The buffer to mark them in is `flyspell-large-region-buffer'."
+  (let (words-not-found
+       (ispell-otherchars (ispell-get-otherchars))
+       (buffer-scan-pos flyspell-large-region-beg)
+       case-fold-search)
+    (with-current-buffer flyspell-external-ispell-buffer
+      (goto-char (point-min))
+      ;; Loop over incorrect words, in the order they were reported,
+      ;; which is also the order they appear in the buffer being checked.
+      (while (re-search-forward "\\([^\n]+\\)\n" nil t)
+       ;; Bind WORD to the next one.
+       (let ((word (match-string 1)) (wordpos (point)))
+         ;; Here there used to be code to see if WORD is the same
+         ;; as the previous iteration, and count the number of consecutive
+         ;; identical words, and the loop below would search for that many.
+         ;; That code seemed to be incorrect, and on principle, should
+         ;; be unnecessary too. -- rms.
+         (if flyspell-issue-message-flag
+             (message "Spell Checking...%d%% [%s]"
+                      (* 100 (/ (float (point)) (point-max)))
+                      word))
+         (with-current-buffer flyspell-large-region-buffer
+           (goto-char buffer-scan-pos)
+           (let ((keep t))
+             ;; Iterate on string search until string is found as word,
+             ;; not as substring
+             (while keep
+               (if (search-forward word
+                                   flyspell-large-region-end t)
+                   (let* ((found-list
+                           (save-excursion
+                             ;; Move back into the match
+                             ;; so flyspell-get-word will find it.
+                             (forward-char -1)
+                             (flyspell-get-word nil)))
+                          (found (car found-list))
+                          (found-length (length found))
+                          (misspell-length (length word)))
+                     (when (or
+                            ;; Size matches, we really found it.
+                            (= found-length misspell-length)
+                            ;; Matches as part of a boundary-char separated word
+                            (member word
+                                    (split-string found ispell-otherchars))
+                            ;; Misspelling has higher length than
+                            ;; what flyspell considers the
+                            ;; word.  Caused by boundary-chars
+                            ;; mismatch.  Validating seems safe.
+                            (< found-length misspell-length)
+                            ;; ispell treats beginning of some TeX
+                            ;; commands as nroff control sequences
+                            ;; and strips them in the list of
+                            ;; misspelled words thus giving a
+                            ;; non-existent word.  Skip if ispell
+                            ;; is used, string is a TeX command
+                            ;; (char before beginning of word is
+                            ;; backslash) and none of the previous
+                            ;; contitions match
+                            (and (not ispell-really-aspell)
+                                 (save-excursion
+                                   (goto-char (- (nth 1 found-list) 1))
+                                   (if (looking-at "[\\]" )
+                                       t
+                                     nil))))
+                       (setq keep nil)
+                       (flyspell-word)
+                       ;; Search for next misspelled word will begin from
+                       ;; end of last validated match.
+                       (setq buffer-scan-pos (point))))
+                 ;; Record if misspelling is not found and try new one
+                 (add-to-list 'words-not-found
+                              (concat " -> " word " - "
+                                      (int-to-string wordpos)))
+                 (setq keep nil)))))))
+      ;; we are done
+      (if flyspell-issue-message-flag (message "Spell Checking completed.")))
+    ;; Warn about not found misspellings
+    (dolist (word words-not-found)
+      (message "%s: word not found" word))
+    ;; Kill and forget the buffer with the list of incorrect words.
+    (kill-buffer flyspell-external-ispell-buffer)
+    (setq flyspell-external-ispell-buffer nil)))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-process-localwords ...                                  */
+;;*    -------------------------------------------------------------    */
+;;*    This function is used to prevent marking of words explicitly     */
+;;*    declared correct.                                                */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-process-localwords (misspellings-buffer)
+  (let (localwords case-fold-search
+       (ispell-casechars (ispell-get-casechars)))
+    ;; Get localwords from the original buffer
+    (save-excursion
+      (goto-char (point-min))
+      ;; Localwords parsing copied from ispell.el.
+      (while (search-forward ispell-words-keyword nil t)
+       (let ((end (save-excursion (end-of-line) (point)))
+             string)
+         ;; buffer-local words separated by a space, and can contain
+         ;; any character other than a space.  Not rigorous enough.
+         (while (re-search-forward " *\\([^ ]+\\)" end t)
+           (setq string (buffer-substring-no-properties (match-beginning 1)
+                                                        (match-end 1)))
+           ;; This can fail when string contains a word with invalid chars.
+           ;; Error handling needs to be added between Ispell and Emacs.
+           (if (and (< 1 (length string))
+                    (equal 0 (string-match ispell-casechars string)))
+               (push string localwords))))))
+    ;; Remove localwords matches from misspellings-buffer.
+    ;; The usual mechanism of communicating the local words to ispell
+    ;; does not affect the special ispell process used by
+    ;; flyspell-large-region.
+    (with-current-buffer misspellings-buffer
+      (save-excursion
+       (dolist (word localwords)
+         (goto-char (point-min))
+         (let ((regexp (concat "^" word "\n")))
+           (while (re-search-forward regexp nil t)
+             (delete-region (match-beginning 0) (match-end 0)))))))))
+
+;;* ---------------------------------------------------------------
+;;*     flyspell-check-region-doublons
+;;* ---------------------------------------------------------------
+(defun flyspell-check-region-doublons (beg end)
+  "Check for adjacent duplicated words (doublons) in the given region."
+  (save-excursion
+    (goto-char beg)
+    (flyspell-word)     ; Make sure current word is checked
+    (backward-word 1)
+    (while (and (< (point) end)
+               (re-search-forward "\\<\\(\\w+\\)\\>[ \n\t\f]+\\1\\>"
+                                  end 'move))
+      (flyspell-word)
+      (backward-word 1))
+    (flyspell-word)))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-large-region ...                                        */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-large-region (beg end)
+  (let* ((curbuf  (current-buffer))
+        (buffer  (get-buffer-create "*flyspell-region*")))
+    (setq flyspell-external-ispell-buffer buffer)
+    (setq flyspell-large-region-buffer curbuf)
+    (setq flyspell-large-region-beg beg)
+    (setq flyspell-large-region-end end)
+    (flyspell-accept-buffer-local-defs)
+    (set-buffer buffer)
+    (erase-buffer)
+    ;; this is done, we can start checking...
+    (if flyspell-issue-message-flag (message "Checking region..."))
+    (set-buffer curbuf)
+    (ispell-check-version)
+    (let ((c (apply 'call-process-region beg
+                   end
+                   ispell-program-name
+                   nil
+                   buffer
+                   nil
+                   (if ispell-really-aspell "list" "-l")
+                   (let (args)
+                     ;; Local dictionary becomes the global dictionary in use.
+                     (if ispell-local-dictionary
+                         (setq ispell-dictionary ispell-local-dictionary))
+                     (setq args (ispell-get-ispell-args))
+                     (if ispell-dictionary ; use specified dictionary
+                         (setq args
+                               (append (list "-d" ispell-dictionary) args)))
+                     (if ispell-personal-dictionary ; use specified pers dict
+                         (setq args
+                               (append args
+                                       (list "-p"
+                                             (expand-file-name
+                                              ispell-personal-dictionary)))))
+                     (setq args (append args ispell-extra-args))
+                     args))))
+      (if (eq c 0)
+         (progn
+           (flyspell-process-localwords buffer)
+           (with-current-buffer curbuf
+             (flyspell-delete-region-overlays beg end)
+             (flyspell-check-region-doublons beg end))
+           (flyspell-external-point-words))
+       (error "Can't check region...")))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-region ...                                              */
+;;*    -------------------------------------------------------------    */
+;;*    Because `ispell -a' is too slow, it is not possible to use       */
+;;*    it on large region. Then, when ispell is invoked on a large      */
+;;*    text region, a new `ispell -l' process is spawned. The           */
+;;*    pointed out words are then searched in the region a checked with */
+;;*    regular flyspell means.                                          */
+;;*---------------------------------------------------------------------*/
+;;;###autoload
+(defun flyspell-region (beg end)
+  "Flyspell text between BEG and END."
+  (interactive "r")
+  (if (= beg end)
+      ()
+    (save-excursion
+      (if (> beg end)
+         (let ((old beg))
+           (setq beg end)
+           (setq end old)))
+      (if (and flyspell-large-region (> (- end beg) flyspell-large-region))
+         (flyspell-large-region beg end)
+       (flyspell-small-region beg end)))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-buffer ...                                              */
+;;*---------------------------------------------------------------------*/
+;;;###autoload
 (defun flyspell-buffer ()
   "Flyspell whole buffer."
   (interactive)
   (flyspell-region (point-min) (point-max)))
 
-;*---------------------------------------------------------------------*/
-;*    flyspell-overlay-p ...                                           */
-;*---------------------------------------------------------------------*/
+;;*---------------------------------------------------------------------*/
+;;*    old next error position ...                                      */
+;;*---------------------------------------------------------------------*/
+(defvar flyspell-old-buffer-error nil)
+(defvar flyspell-old-pos-error nil)
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-goto-next-error ...                                     */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-goto-next-error ()
+  "Go to the next previously detected error.
+In general FLYSPELL-GOTO-NEXT-ERROR must be used after
+FLYSPELL-BUFFER."
+  (interactive)
+  (let ((pos (point))
+       (max (point-max)))
+    (if (and (eq (current-buffer) flyspell-old-buffer-error)
+            (eq pos flyspell-old-pos-error))
+       (progn
+         (if (= flyspell-old-pos-error max)
+             ;; goto beginning of buffer
+             (progn
+               (message "Restarting from beginning of buffer")
+               (goto-char (point-min)))
+           (forward-word 1))
+         (setq pos (point))))
+    ;; seek the next error
+    (while (and (< pos max)
+               (let ((ovs (overlays-at pos))
+                     (r '()))
+                 (while (and (not r) (consp ovs))
+                   (if (flyspell-overlay-p (car ovs))
+                       (setq r t)
+                     (setq ovs (cdr ovs))))
+                 (not r)))
+      (setq pos (1+ pos)))
+    ;; save the current location for next invocation
+    (setq flyspell-old-pos-error pos)
+    (setq flyspell-old-buffer-error (current-buffer))
+    (goto-char pos)
+    (if (= pos max)
+       (message "No more miss-spelled word!"))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-overlay-p ...                                           */
+;;*---------------------------------------------------------------------*/
 (defun flyspell-overlay-p (o)
   "A predicate that return true iff O is an overlay used by flyspell."
   (and (overlayp o) (overlay-get o 'flyspell-overlay)))
 
-;*---------------------------------------------------------------------*/
-;*    flyspell-delete-all-overlays ...                                 */
-;*    -------------------------------------------------------------    */
-;*    Remove all the overlays introduced by flyspell.                  */
-;*---------------------------------------------------------------------*/
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-delete-region-overlays, flyspell-delete-all-overlays    */
+;;*    -------------------------------------------------------------    */
+;;*    Remove overlays introduced by flyspell.                          */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-delete-region-overlays (beg end)
+  "Delete overlays used by flyspell in a given region."
+  (remove-overlays beg end 'flyspell-overlay t))
+
+
 (defun flyspell-delete-all-overlays ()
   "Delete all the overlays used by flyspell."
-  (let ((l (overlays-in (point-min) (point-max))))
-    (while (consp l)
-      (progn
-       (if (flyspell-overlay-p (car l))
-           (delete-overlay (car l)))
-       (setq l (cdr l))))))
+  (remove-overlays (point-min) (point-max) 'flyspell-overlay t))
 
-;*---------------------------------------------------------------------*/
-;*    flyspell-unhighlight-at ...                                      */
-;*---------------------------------------------------------------------*/
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-unhighlight-at ...                                      */
+;;*---------------------------------------------------------------------*/
 (defun flyspell-unhighlight-at (pos)
   "Remove the flyspell overlay that are located at POS."
   (if flyspell-persistent-highlight
@@ -849,13 +1639,14 @@ Word syntax described by `ispell-dictionary-alist' (which see)."
          (if (flyspell-overlay-p (car overlays))
              (delete-overlay (car overlays)))
          (setq overlays (cdr overlays))))
-    (delete-overlay flyspell-overlay)))
-
-;*---------------------------------------------------------------------*/
-;*    flyspell-properties-at-p ...                                     */
-;*    -------------------------------------------------------------    */
-;*    Is there an highlight properties at position pos?                */
-;*---------------------------------------------------------------------*/
+    (if (flyspell-overlay-p flyspell-overlay)
+        (delete-overlay flyspell-overlay))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-properties-at-p ...                                     */
+;;*    -------------------------------------------------------------    */
+;;*    Is there an highlight properties at position pos?                */
+;;*---------------------------------------------------------------------*/
 (defun flyspell-properties-at-p (pos)
   "Return t if there is a text property at POS, not counting `local-map'.
 If variable `flyspell-highlight-properties' is set to nil,
@@ -869,302 +1660,471 @@ if the character at POS has any other property."
        (setq keep nil)))
     (consp prop)))
 
-;*---------------------------------------------------------------------*/
-;*    make-flyspell-overlay ...                                        */
-;*---------------------------------------------------------------------*/
+;;*---------------------------------------------------------------------*/
+;;*    make-flyspell-overlay ...                                        */
+;;*---------------------------------------------------------------------*/
 (defun make-flyspell-overlay (beg end face mouse-face)
   "Allocate an overlay to highlight an incorrect word.
 BEG and END specify the range in the buffer of that word.
 FACE and MOUSE-FACE specify the `face' and `mouse-face' properties
 for the overlay."
-  (let ((flyspell-overlay (make-overlay beg end nil t nil)))
-    (overlay-put flyspell-overlay 'face face)
-    (overlay-put flyspell-overlay 'mouse-face mouse-face)
-    (overlay-put flyspell-overlay 'flyspell-overlay t)
-    (if flyspell-use-local-map
-       (overlay-put flyspell-overlay
-                    flyspell-overlay-keymap-property-name
-                    flyspell-mouse-map))))
-    
-;*---------------------------------------------------------------------*/
-;*    flyspell-highlight-incorrect-region ...                          */
-;*---------------------------------------------------------------------*/
-(defun flyspell-highlight-incorrect-region (beg end)
-  "Set up an overlay on a misspelled word, in the buffer from BEG to END."
-  (run-hook-with-args 'flyspell-incorrect-hook beg end)
-  (if (or flyspell-highlight-properties (not (flyspell-properties-at-p beg)))
-      (progn
-       ;; we cleanup current overlay at the same position
-       (if (and (not flyspell-persistent-highlight)
-                (overlayp flyspell-overlay))
-           (delete-overlay flyspell-overlay)
-         (let ((overlays (overlays-at beg)))
-           (while (consp overlays)
-             (if (flyspell-overlay-p (car overlays))
-                 (delete-overlay (car overlays)))
-             (setq overlays (cdr overlays)))))
-       ;; now we can use a new overlay
-       (setq flyspell-overlay
-             (make-flyspell-overlay beg end
-                                    'flyspell-incorrect-face 'highlight)))))
-
-;*---------------------------------------------------------------------*/
-;*    flyspell-highlight-duplicate-region ...                          */
-;*---------------------------------------------------------------------*/
-(defun flyspell-highlight-duplicate-region (beg end)
-  "Set up an overlay on a duplicated word, in the buffer from BEG to END."
-  (if (or flyspell-highlight-properties (not (flyspell-properties-at-p beg)))
-      (progn
-       ;; we cleanup current overlay at the same position
-       (if (and (not flyspell-persistent-highlight)
-                (overlayp flyspell-overlay))
-           (delete-overlay flyspell-overlay)
-         (let ((overlays (overlays-at beg)))
-           (while (consp overlays)
-             (if (flyspell-overlay-p (car overlays))
-                 (delete-overlay (car overlays)))
-             (setq overlays (cdr overlays)))))
-       ;; now we can use a new overlay
-       (setq flyspell-overlay
-             (make-flyspell-overlay beg end
-                                    'flyspell-duplicate-face 'highlight)))))
-
-;*---------------------------------------------------------------------*/
-;*    flyspell-auto-correct-cache ...                                  */
-;*---------------------------------------------------------------------*/
+  (let ((overlay (make-overlay beg end nil t nil)))
+    (overlay-put overlay 'face face)
+    (overlay-put overlay 'mouse-face mouse-face)
+    (overlay-put overlay 'flyspell-overlay t)
+    (overlay-put overlay 'evaporate t)
+    (overlay-put overlay 'help-echo "mouse-2: correct word at point")
+    (overlay-put overlay 'keymap flyspell-mouse-map)
+    (when (eq face 'flyspell-incorrect)
+      (and (stringp flyspell-before-incorrect-word-string)
+           (overlay-put overlay 'before-string
+                        flyspell-before-incorrect-word-string))
+      (and (stringp flyspell-after-incorrect-word-string)
+           (overlay-put overlay 'after-string
+                        flyspell-after-incorrect-word-string)))
+    overlay))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-highlight-incorrect-region ...                          */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-highlight-incorrect-region (beg end poss)
+  "Set up an overlay on a misspelled word, in the buffer from BEG to END.
+POSS is usually a list of possible spelling/correction lists,
+as returned by `ispell-parse-output'.
+It can also be the symbol `doublon', in the case where the word
+is itself incorrect, but suspiciously repeated."
+  (let ((inhibit-read-only t))
+    (unless (run-hook-with-args-until-success
+            'flyspell-incorrect-hook beg end poss)
+      (if (or flyspell-highlight-properties
+             (not (flyspell-properties-at-p beg)))
+         (progn
+           ;; we cleanup all the overlay that are in the region, not
+           ;; beginning at the word start position
+           (if (< (1+ beg) end)
+               (let ((os (overlays-in (1+ beg) end)))
+                 (while (consp os)
+                   (if (flyspell-overlay-p (car os))
+                       (delete-overlay (car os)))
+                   (setq os (cdr os)))))
+           ;; we cleanup current overlay at the same position
+            (flyspell-unhighlight-at beg)
+           ;; now we can use a new overlay
+           (setq flyspell-overlay
+                 (make-flyspell-overlay
+                  beg end
+                  (if (eq poss 'doublon) 'flyspell-duplicate 'flyspell-incorrect)
+                  'highlight)))))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-highlight-duplicate-region ...                          */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-highlight-duplicate-region (beg end poss)
+  "Set up an overlay on a duplicate misspelled word, in the buffer from BEG to END.
+POSS is a list of possible spelling/correction lists,
+as returned by `ispell-parse-output'."
+  (let ((inhibit-read-only t))
+    (unless (run-hook-with-args-until-success
+            'flyspell-incorrect-hook beg end poss)
+      (if (or flyspell-highlight-properties
+             (not (flyspell-properties-at-p beg)))
+         (progn
+           ;; we cleanup current overlay at the same position
+            (flyspell-unhighlight-at beg)
+           ;; now we can use a new overlay
+           (setq flyspell-overlay
+                 (make-flyspell-overlay beg end
+                                        'flyspell-duplicate
+                                        'highlight)))))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-auto-correct-cache ...                                  */
+;;*---------------------------------------------------------------------*/
 (defvar flyspell-auto-correct-pos nil)
 (defvar flyspell-auto-correct-region nil)
 (defvar flyspell-auto-correct-ring nil)
-
-;*---------------------------------------------------------------------*/
-;*    flyspell-auto-correct-word ...                                   */
-;*---------------------------------------------------------------------*/
-(defun flyspell-auto-correct-word (pos)
-  "Correct the word at POS.
-This command proposes various successive corrections for the word at POS.
-The variable `flyspell-auto-correct-binding' specifies the key to bind
-to this command."
-  (interactive "d")
-  ;; use the correct dictionary
-  (ispell-accept-buffer-local-defs)
-  (if (eq flyspell-auto-correct-pos pos)
-      ;; we have already been using the function at the same location
-      (progn
+(defvar flyspell-auto-correct-word nil)
+(make-variable-buffer-local 'flyspell-auto-correct-pos)
+(make-variable-buffer-local 'flyspell-auto-correct-region)
+(make-variable-buffer-local 'flyspell-auto-correct-ring)
+(make-variable-buffer-local 'flyspell-auto-correct-word)
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-check-previous-highlighted-word ...                     */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-check-previous-highlighted-word (&optional arg)
+  "Correct the closer misspelled word.
+This function scans a mis-spelled word before the cursor. If it finds one
+it proposes replacement for that word. With prefix arg, count that many
+misspelled words backwards."
+  (interactive)
+  (let ((pos1 (point))
+       (pos  (point))
+       (arg  (if (or (not (numberp arg)) (< arg 1)) 1 arg))
+       ov ovs)
+    (if (catch 'exit
+         (while (and (setq pos (previous-overlay-change pos))
+                     (not (= pos pos1)))
+           (setq pos1 pos)
+           (if (> pos (point-min))
+               (progn
+                 (setq ovs (overlays-at (1- pos)))
+                 (while (consp ovs)
+                   (setq ov (car ovs))
+                   (setq ovs (cdr ovs))
+                   (if (and (flyspell-overlay-p ov)
+                            (= 0 (setq arg (1- arg))))
+                       (throw 'exit t)))))))
        (save-excursion
-         (let ((start (car flyspell-auto-correct-region))
-               (len   (cdr flyspell-auto-correct-region)))
-           (delete-region start (+ start len))
-           (setq flyspell-auto-correct-ring (cdr flyspell-auto-correct-ring))
-           (let* ((word (car flyspell-auto-correct-ring))
-                  (len  (length word)))
-             (rplacd flyspell-auto-correct-region len)
-             (goto-char start)
-             (insert word))))
-       (setq flyspell-auto-correct-pos (point)))
-    ;; retain cursor location
-    (let ((cursor-location pos)
-         (word (flyspell-get-word nil))
-         start end poss)
-      ;; destructure return word info list.
-      (setq start (car (cdr word))
-           end (car (cdr (cdr word)))
-           word (car word))
-      ;; now check spelling of word.
-      (process-send-string ispell-process "%\n") ;put in verbose mode
-      (process-send-string ispell-process (concat "^" word "\n"))
-      ;; wait until ispell has processed word
-      (while (progn
-              (accept-process-output ispell-process)
-              (not (string= "" (car ispell-filter)))))
-      (setq ispell-filter (cdr ispell-filter))
-      (if (listp ispell-filter)
-         (setq poss (ispell-parse-output (car ispell-filter))))
-      (cond ((or (eq poss t) (stringp poss))
-            ;; don't correct word
-            t)
-           ((null poss)
-            ;; ispell error
-            (error "Ispell: error in Ispell process"))
-           (t
-            ;; the word is incorrect, we have to propose a replacement
-            (let ((replacements (if flyspell-sort-corrections
-                                    (sort (car (cdr (cdr poss))) 'string<)
-                                  (car (cdr (cdr poss))))))
-              (if (consp replacements)
-                  (progn
-                    (let ((replace (car replacements)))
-                      (setq word replace)
-                      (setq cursor-location (+ (- (length word) (- end start))
-                                               cursor-location))
-                      (if (not (equal word (car poss)))
-                          (progn
-                            ;; the save the current replacements
-                            (setq flyspell-auto-correct-pos cursor-location)
-                            (setq flyspell-auto-correct-region
-                                  (cons start (length word)))
-                            (let ((l replacements))
-                              (while (consp (cdr l))
-                                (setq l (cdr l)))
-                              (rplacd l (cons (car poss) replacements)))
-                            (setq flyspell-auto-correct-ring
-                                  (cdr replacements))
-                            (delete-region start end)
-                            (insert word)))))))))
-      ;; return to original location
-      (goto-char cursor-location)
-      (ispell-pdict-save t))))
-
-;*---------------------------------------------------------------------*/
-;*    flyspell-correct-word ...                                        */
-;*---------------------------------------------------------------------*/
-(defun flyspell-correct-word (event)
-  "Check spelling of word under or before the cursor.
-If the word is not found in dictionary, display possible corrections
-in a popup menu allowing you to choose one.
+         (goto-char pos)
+         (ispell-word))
+      (error "No word to correct before point"))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-display-next-corrections ...                            */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-display-next-corrections (corrections)
+  (let ((string "Corrections:")
+       (l corrections)
+       (pos '()))
+    (while (< (length string) 80)
+      (if (equal (car l) flyspell-auto-correct-word)
+         (setq pos (cons (+ 1 (length string)) pos)))
+      (setq string (concat string " " (car l)))
+      (setq l (cdr l)))
+    (while (consp pos)
+      (let ((num (car pos)))
+       (put-text-property num
+                          (+ num (length flyspell-auto-correct-word))
+                          'face 'flyspell-incorrect
+                          string))
+      (setq pos (cdr pos)))
+    (if (fboundp 'display-message)
+       (display-message 'no-log string)
+      (message "%s" string))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-abbrev-table ...                                        */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-abbrev-table ()
+  (if flyspell-use-global-abbrev-table-p
+      global-abbrev-table
+    (or local-abbrev-table global-abbrev-table)))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-define-abbrev ...                                       */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-define-abbrev (name expansion)
+  (let ((table (flyspell-abbrev-table)))
+    (when table
+      (define-abbrev table name expansion))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-auto-correct-word ...                                   */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-auto-correct-word ()
+  "Correct the current word.
+This command proposes various successive corrections for the current word."
+  (interactive)
+  (let ((pos     (point))
+       (old-max (point-max)))
+    ;; use the correct dictionary
+    (flyspell-accept-buffer-local-defs)
+    (if (and (eq flyspell-auto-correct-pos pos)
+            (consp flyspell-auto-correct-region))
+       ;; we have already been using the function at the same location
+       (let* ((start (car flyspell-auto-correct-region))
+              (len   (cdr flyspell-auto-correct-region)))
+         (flyspell-unhighlight-at start)
+         (delete-region start (+ start len))
+         (setq flyspell-auto-correct-ring (cdr flyspell-auto-correct-ring))
+         (let* ((word (car flyspell-auto-correct-ring))
+                (len  (length word)))
+           (rplacd flyspell-auto-correct-region len)
+           (goto-char start)
+           (if flyspell-abbrev-p
+               (if (flyspell-already-abbrevp (flyspell-abbrev-table)
+                                             flyspell-auto-correct-word)
+                   (flyspell-change-abbrev (flyspell-abbrev-table)
+                                           flyspell-auto-correct-word
+                                           word)
+                 (flyspell-define-abbrev flyspell-auto-correct-word word)))
+           (funcall flyspell-insert-function word)
+           (flyspell-word)
+           (flyspell-display-next-corrections flyspell-auto-correct-ring))
+         (flyspell-ajust-cursor-point pos (point) old-max)
+         (setq flyspell-auto-correct-pos (point)))
+      ;; fetch the word to be checked
+      (let ((word (flyspell-get-word nil)))
+       (if (consp word)
+           (let ((start (car (cdr word)))
+                 (end (car (cdr (cdr word))))
+                 (word (car word))
+                 poss ispell-filter)
+             (setq flyspell-auto-correct-word word)
+             ;; now check spelling of word.
+             (ispell-send-string "%\n") ;put in verbose mode
+             (ispell-send-string (concat "^" word "\n"))
+              ;; wait until ispell has processed word.
+              (while (progn
+                       (accept-process-output ispell-process)
+                       (not (string= "" (car ispell-filter)))))
+             ;; Remove leading empty element
+             (setq ispell-filter (cdr ispell-filter))
+             ;; ispell process should return something after word is sent.
+             ;; Tag word as valid (i.e., skip) otherwise
+             (or ispell-filter
+                 (setq ispell-filter '(*)))
+             (if (consp ispell-filter)
+                 (setq poss (ispell-parse-output (car ispell-filter))))
+             (cond
+              ((or (eq poss t) (stringp poss))
+               ;; don't correct word
+               t)
+              ((null poss)
+               ;; ispell error
+               (error "Ispell: error in Ispell process"))
+              (t
+               ;; the word is incorrect, we have to propose a replacement
+               (let ((replacements (if flyspell-sort-corrections
+                                       (sort (car (cdr (cdr poss))) 'string<)
+                                     (car (cdr (cdr poss))))))
+                 (setq flyspell-auto-correct-region nil)
+                 (if (consp replacements)
+                     (progn
+                       (let ((replace (car replacements)))
+                         (let ((new-word replace))
+                           (if (not (equal new-word (car poss)))
+                               (progn
+                                 ;; the save the current replacements
+                                 (setq flyspell-auto-correct-region
+                                       (cons start (length new-word)))
+                                 (let ((l replacements))
+                                   (while (consp (cdr l))
+                                     (setq l (cdr l)))
+                                   (rplacd l (cons (car poss) replacements)))
+                                 (setq flyspell-auto-correct-ring
+                                       replacements)
+                                 (flyspell-unhighlight-at start)
+                                 (delete-region start end)
+                                 (funcall flyspell-insert-function new-word)
+                                 (if flyspell-abbrev-p
+                                     (if (flyspell-already-abbrevp
+                                          (flyspell-abbrev-table) word)
+                                         (flyspell-change-abbrev
+                                          (flyspell-abbrev-table)
+                                          word
+                                          new-word)
+                                       (flyspell-define-abbrev word
+                                                               new-word)))
+                                 (flyspell-word)
+                                 (flyspell-display-next-corrections
+                                  (cons new-word flyspell-auto-correct-ring))
+                                 (flyspell-ajust-cursor-point pos
+                                                              (point)
+                                                              old-max))))))))))
+             (setq flyspell-auto-correct-pos (point))
+             (ispell-pdict-save t)))))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-auto-correct-previous-pos ...                           */
+;;*---------------------------------------------------------------------*/
+(defvar flyspell-auto-correct-previous-pos nil
+  "Holds the start of the first incorrect word before point.")
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-auto-correct-previous-hook ...                          */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-auto-correct-previous-hook ()
+  "Hook to track successive calls to `flyspell-auto-correct-previous-word'.
+Sets `flyspell-auto-correct-previous-pos' to nil"
+  (interactive)
+  (remove-hook 'pre-command-hook (function flyspell-auto-correct-previous-hook) t)
+  (unless (eq this-command (function flyspell-auto-correct-previous-word))
+    (setq flyspell-auto-correct-previous-pos nil)))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-auto-correct-previous-word ...                          */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-auto-correct-previous-word (position)
+  "Auto correct the first mispelled word that occurs before point.
+But don't look beyond what's visible on the screen."
+  (interactive "d")
 
-Word syntax described by `ispell-dictionary-alist' (which see).
+  (let (top bot)
+    (save-excursion
+      (move-to-window-line 0)
+      (setq top (point))
+      (move-to-window-line -1)
+      (setq bot (point)))
+    (save-excursion
+      (save-restriction
+       (narrow-to-region top bot)
+       (overlay-recenter (point))
+
+       (add-hook 'pre-command-hook
+                 (function flyspell-auto-correct-previous-hook) t t)
+
+       (unless flyspell-auto-correct-previous-pos
+         ;; only reset if a new overlay exists
+         (setq flyspell-auto-correct-previous-pos nil)
+
+         (let ((overlay-list (overlays-in (point-min) position))
+               (new-overlay 'dummy-value))
+
+           ;; search for previous (new) flyspell overlay
+           (while (and new-overlay
+                       (or (not (flyspell-overlay-p new-overlay))
+                           ;; check if its face has changed
+                           (not (eq (get-char-property
+                                     (overlay-start new-overlay) 'face)
+                                    'flyspell-incorrect))))
+             (setq new-overlay (car-safe overlay-list))
+             (setq overlay-list (cdr-safe overlay-list)))
+
+           ;; if nothing new exits new-overlay should be nil
+           (if new-overlay ;; the length of the word may change so go to the start
+               (setq flyspell-auto-correct-previous-pos
+                     (overlay-start new-overlay)))))
+
+       (when flyspell-auto-correct-previous-pos
+         (save-excursion
+           (goto-char flyspell-auto-correct-previous-pos)
+           (let ((ispell-following-word t)) ;; point is at start
+             (if (numberp flyspell-auto-correct-previous-pos)
+                 (goto-char flyspell-auto-correct-previous-pos))
+             (flyspell-auto-correct-word))
+           ;; the point may have moved so reset this
+           (setq flyspell-auto-correct-previous-pos (point))))))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-correct-word ...                                        */
+;;*---------------------------------------------------------------------*/
 
-This will check or reload the dictionary.  Use \\[ispell-change-dictionary]
-or \\[ispell-region] to update the Ispell process."
-  (interactive "e")
-  (if flyspell-use-local-map
-      (flyspell-correct-word/mouse-keymap event)
-    (flyspell-correct-word/local-keymap event)))
-    
-;*---------------------------------------------------------------------*/
-;*    flyspell-correct-word/local-keymap ...                           */
-;*---------------------------------------------------------------------*/
-(defun flyspell-correct-word/local-keymap (event)
-  "emacs 19.xx seems to be buggous. Overlay keymap does not seems
-to work correctly with local map. That is, if a key is not
-defined for the overlay keymap, the current local map, is not
-checked. The binding is resolved with the global map. The
-consequence is that we can not use overlay map with flyspell."
-  (interactive "e")
-  (save-window-excursion
-    (let ((save (point)))
-      (mouse-set-point event)
-      ;; we look for a flyspell overlay here
-      (let ((overlays (overlays-at (point)))
-           (overlay  nil))
-       (while (consp overlays)
-         (if (flyspell-overlay-p (car overlays))
-             (progn
-               (setq overlay (car overlays))
-               (setq overlays nil))
-           (setq overlays (cdr overlays))))
-       ;; we return to the correct location
-       (goto-char save)
-       ;; we check to see if button2 has been used overlay a
-       ;; flyspell overlay
-       (if overlay
-           ;; yes, so we use the flyspell function
-           (flyspell-correct-word/mouse-keymap event)
-         ;; no so we have to use the non flyspell binding
-         (let ((flyspell-mode nil))
-           (if (key-binding (this-command-keys))
-               (command-execute (key-binding (this-command-keys))))))))))
-  
-;*---------------------------------------------------------------------*/
-;*    flyspell-correct-word ...                                        */
-;*---------------------------------------------------------------------*/
-(defun flyspell-correct-word/mouse-keymap (event)
+(defun flyspell-correct-word (event)
   "Pop up a menu of possible corrections for a misspelled word.
 The word checked is the word at the mouse position."
   (interactive "e")
-  ;; use the correct dictionary
-  (ispell-accept-buffer-local-defs)
-  ;; retain cursor location (I don't know why but save-excursion here fails).
   (let ((save (point)))
     (mouse-set-point event)
-    (let ((cursor-location (point))
-         (word (flyspell-get-word nil))
-         start end poss replace)
-      ;; destructure return word info list.
-      (setq start (car (cdr word))
-           end (car (cdr (cdr word)))
-           word (car word))
-      ;; now check spelling of word.
-      (process-send-string ispell-process "%\n") ;put in verbose mode
-      (process-send-string ispell-process (concat "^" word "\n"))
-      ;; wait until ispell has processed word
-      (while (progn
-              (accept-process-output ispell-process)
-              (not (string= "" (car ispell-filter)))))
-      (setq ispell-filter (cdr ispell-filter))
-      (if (listp ispell-filter)
-         (setq poss (ispell-parse-output (car ispell-filter))))
-      (cond ((or (eq poss t) (stringp poss))
-            ;; don't correct word
-            t)
-           ((null poss)
-            ;; ispell error
-            (error "Ispell: error in Ispell process"))
-           ((string-match "GNU" (emacs-version))
-            ;; the word is incorrect, we have to propose a replacement
-            (setq replace (flyspell-emacs-popup event poss word))
-            (cond ((eq replace 'ignore)
-                   nil)
-                  ((eq replace 'save)
-                   (process-send-string ispell-process (concat "*" word "\n"))
-                   (flyspell-unhighlight-at cursor-location)
-                   (setq ispell-pdict-modified-p '(t)))
-                  ((or (eq replace 'buffer) (eq replace 'session))
-                   (process-send-string ispell-process (concat "@" word "\n"))
-                   (if (null ispell-pdict-modified-p)
-                       (setq ispell-pdict-modified-p
-                             (list ispell-pdict-modified-p)))
-                   (flyspell-unhighlight-at cursor-location)
-                   (if (eq replace 'buffer)
-                       (ispell-add-per-file-word-list word)))
-                  (replace
-                   (setq word (if (atom replace) replace (car replace))
-                         cursor-location (+ (- (length word) (- end start))
-                                            cursor-location))
-                   (if (not (equal word (car poss)))
-                       (progn
-                         (delete-region start end)
-                         (insert word))))))
-           ((string-match "XEmacs" (emacs-version))
-            (flyspell-xemacs-popup
-             event poss word cursor-location start end)))
-      (ispell-pdict-save t))
-    (if (< save (point-max))
-       (goto-char save)
-      (goto-char (point-max)))))
+    (flyspell-correct-word-before-point event save)))
 
-;*---------------------------------------------------------------------*/
-;*    flyspell-xemacs-correct ...                                      */
-;*---------------------------------------------------------------------*/
-(defun flyspell-xemacs-correct (replace poss word cursor-location start end)
-  "The xemacs popup menu callback."
+(defun flyspell-correct-word-before-point (&optional event opoint)
+  "Pop up a menu of possible corrections for misspelled word before point.
+If EVENT is non-nil, it is the mouse event that invoked this operation;
+that controls where to put the menu.
+If OPOINT is non-nil, restore point there after adjusting it for replacement."
+  (interactive)
+  (unless (mouse-position)
+    (error "Pop-up menus do not work on this terminal"))
+  ;; use the correct dictionary
+  (flyspell-accept-buffer-local-defs)
+  (let ((cursor-location (point))
+       (word (flyspell-get-word nil)))
+    (if (consp word)
+       (let ((start (car (cdr word)))
+             (end (car (cdr (cdr word))))
+             (word (car word))
+             poss ispell-filter)
+         ;; now check spelling of word.
+         (ispell-send-string "%\n")    ;put in verbose mode
+         (ispell-send-string (concat "^" word "\n"))
+         ;; wait until ispell has processed word
+         (while (progn
+                  (accept-process-output ispell-process)
+                  (not (string= "" (car ispell-filter)))))
+         ;; Remove leading empty element
+         (setq ispell-filter (cdr ispell-filter))
+         ;; ispell process should return something after word is sent.
+         ;; Tag word as valid (i.e., skip) otherwise
+         (or ispell-filter
+             (setq ispell-filter '(*)))
+         (if (consp ispell-filter)
+             (setq poss (ispell-parse-output (car ispell-filter))))
+         (cond
+          ((or (eq poss t) (stringp poss))
+           ;; don't correct word
+           t)
+          ((null poss)
+           ;; ispell error
+           (error "Ispell: error in Ispell process"))
+          ((featurep 'xemacs)
+           (flyspell-xemacs-popup
+            poss word cursor-location start end opoint))
+          (t
+           ;; The word is incorrect, we have to propose a replacement.
+           (flyspell-do-correct (flyspell-emacs-popup event poss word)
+                                poss word cursor-location start end opoint)))
+         (ispell-pdict-save t)))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-do-correct ...                                      */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-do-correct (replace poss word cursor-location start end save)
+  "The popup menu callback."
+  ;; Originally, the XEmacs code didn't do the (goto-char save) here and did
+  ;; it instead right after calling the function.
   (cond ((eq replace 'ignore)
+         (goto-char save)
         nil)
        ((eq replace 'save)
-        (process-send-string ispell-process (concat "*" word "\n"))
+         (goto-char save)
+        (ispell-send-string (concat "*" word "\n"))
+         ;; This was added only to the XEmacs side in revision 1.18 of
+         ;; flyspell.  I assume its absence on the Emacs side was an
+         ;; oversight.  --Stef
+        (ispell-send-string "#\n")
         (flyspell-unhighlight-at cursor-location)
         (setq ispell-pdict-modified-p '(t)))
        ((or (eq replace 'buffer) (eq replace 'session))
-        (process-send-string ispell-process (concat "@" word "\n"))
+        (ispell-send-string (concat "@" word "\n"))
         (flyspell-unhighlight-at cursor-location)
         (if (null ispell-pdict-modified-p)
             (setq ispell-pdict-modified-p
                   (list ispell-pdict-modified-p)))
+         (goto-char save)
         (if (eq replace 'buffer)
             (ispell-add-per-file-word-list word)))
        (replace
-        (setq word (if (atom replace) replace (car replace))
-              cursor-location (+ (- (length word) (- end start))
-                                 cursor-location))
-        (if (not (equal word (car poss)))
-            (save-excursion
-              (delete-region start end)
-              (goto-char start)
-              (insert word))))))
-
-;*---------------------------------------------------------------------*/
-;*    flyspell-emacs-popup ...                                         */
-;*---------------------------------------------------------------------*/
+         ;; This was added only to the Emacs side.  I assume its absence on
+         ;; the XEmacs side was an oversight.  --Stef
+         (flyspell-unhighlight-at cursor-location)
+        (let ((old-max (point-max))
+              (new-word (if (atom replace)
+                            replace
+                          (car replace)))
+              (cursor-location (+ (- (length word) (- end start))
+                                  cursor-location)))
+          (unless (equal new-word (car poss))
+             (delete-region start end)
+             (goto-char start)
+             (funcall flyspell-insert-function new-word)
+             (if flyspell-abbrev-p
+                 (flyspell-define-abbrev word new-word)))
+           ;; In the original Emacs code, this was only called in the body
+           ;; of the if.  I arbitrarily kept the XEmacs behavior instead.
+           (flyspell-ajust-cursor-point save cursor-location old-max)))
+        (t
+         (goto-char save)
+         nil)))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-ajust-cursor-point ...                                  */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-ajust-cursor-point (save cursor-location old-max)
+  (if (>= save cursor-location)
+      (let ((new-pos (+ save (- (point-max) old-max))))
+       (goto-char (cond
+                   ((< new-pos (point-min))
+                    (point-min))
+                   ((> new-pos (point-max))
+                    (point-max))
+                   (t new-pos))))
+    (goto-char save)))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-emacs-popup ...                                         */
+;;*---------------------------------------------------------------------*/
 (defun flyspell-emacs-popup (event poss word)
   "The Emacs popup menu."
   (if (not event)
@@ -1172,8 +2132,7 @@ The word checked is the word at the mouse position."
             (mouse-pos  (if (nth 1 mouse-pos)
                             mouse-pos
                           (set-mouse-position (car mouse-pos)
-                                              (/ (frame-width) 2) 2)
-                          (unfocus-frame)
+                                              (/ (frame-width) 2) 2)
                           (mouse-position))))
        (setq event (list (list (car (cdr mouse-pos))
                                (1+ (cdr (cdr mouse-pos))))
@@ -1187,11 +2146,12 @@ The word checked is the word at the mouse position."
                                 corrects)
                       '()))
         (affix      (car (cdr (cdr (cdr poss)))))
-        (base-menu  (let ((save (if (consp affix)
+        show-affix-info
+        (base-menu  (let ((save (if (and (consp affix) show-affix-info)
                                     (list
                                      (list (concat "Save affix: " (car affix))
                                            'save)
-                                     '("Accept (session)" accept)
+                                     '("Accept (session)" session)
                                      '("Accept (buffer)" buffer))
                                   '(("Save word" save)
                                     ("Accept (session)" session)
@@ -1205,66 +2165,72 @@ The word checked is the word at the mouse position."
                                                        ispell-dictionary))
                             menu)))))
 
-;*---------------------------------------------------------------------*/
-;*    flyspell-xemacs-popup ...                                        */
-;*---------------------------------------------------------------------*/
-(defun flyspell-xemacs-popup (event poss word cursor-location start end)
-  "The xemacs popup menu."
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-xemacs-popup ...                                        */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-xemacs-popup (poss word cursor-location start end save)
+  "The XEmacs popup menu."
   (let* ((corrects   (if flyspell-sort-corrections
                         (sort (car (cdr (cdr poss))) 'string<)
                       (car (cdr (cdr poss)))))
         (cor-menu   (if (consp corrects)
                         (mapcar (lambda (correct)
                                   (vector correct
-                                          (list 'flyspell-xemacs-correct
+                                          (list 'flyspell-do-correct
                                                 correct
                                                 (list 'quote poss)
                                                 word
                                                 cursor-location
                                                 start
-                                                end)
+                                                end
+                                                save)
                                           t))
                                 corrects)
                       '()))
         (affix      (car (cdr (cdr (cdr poss)))))
-        (menu       (let ((save (if (consp affix)
+        show-affix-info
+        (menu       (let ((save (if (and (consp affix) show-affix-info)
                                     (vector
                                      (concat "Save affix: " (car affix))
-                                     (list 'flyspell-xemacs-correct
+                                     (list 'flyspell-do-correct
                                            ''save
                                            (list 'quote poss)
                                            word
                                            cursor-location
                                            start
-                                           end)
+                                           end
+                                           save)
                                      t)
                                   (vector
                                    "Save word"
-                                   (list 'flyspell-xemacs-correct
+                                   (list 'flyspell-do-correct
                                          ''save
                                          (list 'quote poss)
                                          word
                                          cursor-location
                                          start
-                                         end)
+                                         end
+                                         save)
                                    t)))
                           (session (vector "Accept (session)"
-                                           (list 'flyspell-xemacs-correct
+                                           (list 'flyspell-do-correct
                                                  ''session
                                                  (list 'quote poss)
                                                  word
                                                  cursor-location
                                                  start
-                                                 end)
+                                                 end
+                                                 save)
                                            t))
                           (buffer  (vector "Accept (buffer)"
-                                           (list 'flyspell-xemacs-correct
+                                           (list 'flyspell-do-correct
                                                  ''buffer
                                                  (list 'quote poss)
                                                  word
                                                  cursor-location
                                                  start
-                                                 end)
+                                                 end
+                                                 save)
                                            t)))
                       (if (consp cor-menu)
                           (append cor-menu (list "-" save session buffer))
@@ -1273,6 +2239,79 @@ The word checked is the word at the mouse position."
                                                 ispell-dictionary))
                      menu))))
 
+;;*---------------------------------------------------------------------*/
+;;*    Some example functions for real autocorrecting                   */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-maybe-correct-transposition (beg end poss)
+  "Check replacements for transposed characters.
+
+If the text between BEG and END is equal to a correction suggested by
+Ispell, after transposing two adjacent characters, correct the text,
+and return t.
+
+The third arg POSS is either the symbol 'doublon' or a list of
+possible corrections as returned by `ispell-parse-output'.
+
+This function is meant to be added to `flyspell-incorrect-hook'."
+  (when (consp poss)
+    (catch 'done
+      (let ((str (buffer-substring beg end))
+           (i 0) (len (- end beg)) tmp)
+       (while (< (1+ i) len)
+         (setq tmp (aref str i))
+         (aset str i (aref str (1+ i)))
+         (aset str (1+ i) tmp)
+          (when (member str (nth 2 poss))
+           (save-excursion
+             (goto-char (+ beg i 1))
+             (transpose-chars 1))
+           (throw 'done t))
+         (setq tmp (aref str i))
+         (aset str i (aref str (1+ i)))
+         (aset str (1+ i) tmp)
+         (setq i (1+ i))))
+      nil)))
+
+(defun flyspell-maybe-correct-doubling (beg end poss)
+  "Check replacements for doubled characters.
+
+If the text between BEG and END is equal to a correction suggested by
+Ispell, after removing a pair of doubled characters, correct the text,
+and return t.
+
+The third arg POSS is either the symbol 'doublon' or a list of
+possible corrections as returned by `ispell-parse-output'.
+
+This function is meant to be added to `flyspell-incorrect-hook'."
+  (when (consp poss)
+    (catch 'done
+      (let ((str (buffer-substring beg end))
+           (i 0) (len (- end beg)))
+       (while (< (1+ i) len)
+         (when (and (= (aref str i) (aref str (1+ i)))
+                    (member (concat (substring str 0 (1+ i))
+                                    (substring str (+ i 2)))
+                            (nth 2 poss)))
+           (goto-char (+ beg i))
+           (delete-char 1)
+           (throw 'done t))
+         (setq i (1+ i))))
+      nil)))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-already-abbrevp ...                                     */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-already-abbrevp (table word)
+  (let ((sym (abbrev-symbol word table)))
+    (and sym (symbolp sym))))
+
+;;*---------------------------------------------------------------------*/
+;;*    flyspell-change-abbrev ...                                       */
+;;*---------------------------------------------------------------------*/
+(defun flyspell-change-abbrev (table old new)
+  (set (abbrev-symbol old table) new))
+
 (provide 'flyspell)
 
+;; arch-tag: 05d915b9-e9cf-44fb-9137-fc28f5eaab2a
 ;;; flyspell.el ends here