--- /dev/null
+;;This is the GNU EMACS interface to GNU ISPELL version 3.
+;; Copyright (C) 1990 Free Software Foundation, Inc.
+;;
+;;This file is part of GNU ISPELL.
+;;
+;;GNU ISPELL is free software; you can redistribute it and/or modify
+;;it under the terms of the GNU General Public License as published by
+;;the Free Software Foundation; either version 1, or (at your option)
+;;any later version.
+;;
+;;GNU ISPELL is distributed in the hope that it will be useful,
+;;but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;GNU General Public License for more details.
+;;
+;;You should have received a copy of the GNU General Public License
+;;along with GNU ISPELL; see the file COPYING. If not, write to
+;;the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+(defvar ispell-have-new-look t
+ "T if default 'look' program has the -r flag.")
+
+(defvar ispell-enable-tex-parser nil
+ "T to enable experimental tex parser in ispell for tex buffers.")
+
+(defvar ispell-process nil "The process running ISPELL")
+(defvar ispell-next-message nil
+ "An integer telling where in the *ispell* buffer where
+to look for the next message from the ISPELL program.")
+
+;Each marker in this list points to the start of a word that
+;ispell thought was bad last time it did the :file command.
+;Notice that if the user accepts or inserts a word into his
+;private dictionary, then some "good" words will be on the list.
+;We would like to deal with this by looking up the words again just before
+;presenting them to the user, but that is too slow on machines
+;without the select system call. Therefore, see the variable
+;ispell-recently-accepted.
+(defvar ispell-bad-words nil
+ "A list of markers corresponding to the output of the ISPELL :file command.")
+
+;list of words that the user has accepted, but that might still
+;be on the bad-words list
+(defvar ispell-recently-accepted nil)
+
+;t when :dump command needed
+(defvar ispell-dump-needed nil)
+
+(defun ispell-flush-bad-words ()
+ (while ispell-bad-words
+ (if (markerp (car ispell-bad-words))
+ (set-marker (car ispell-bad-words) nil))
+ (setq ispell-bad-words (cdr ispell-bad-words)))
+ (setq ispell-recently-accepted nil))
+
+(defun kill-ispell ()
+ "Kill the ispell process.
+Any changes the your private dictionay
+that have not already been dumped will be lost."
+ (interactive)
+ (if ispell-process
+ (delete-process ispell-process))
+ (setq ispell-process nil)
+ (ispell-flush-bad-words))
+
+(put 'ispell-startup-error 'error-conditions
+ '(ispell-startup-error error))
+(put 'ispell-startup-error 'error-message
+ "Problem starting ispell - see buffer *ispell*")
+
+(defun start-ispell ()
+ "Start an ispell subprocess; check the version; and display the greeting."
+ (message "Starting ispell ...")
+ (let ((buf (get-buffer "*ispell*")))
+ (if buf
+ (kill-buffer buf)))
+ (condition-case err
+ (setq ispell-process (start-process "ispell" "*ispell*" "ispell" "-S"))
+ (file-error (signal 'ispell-startup-error nil)))
+ (process-kill-without-query ispell-process)
+ (buffer-disable-undo (process-buffer ispell-process))
+ (accept-process-output ispell-process)
+ (let (last-char)
+ (save-excursion
+ (set-buffer (process-buffer ispell-process))
+ (bury-buffer (current-buffer))
+ (setq last-char (- (point-max) 1))
+ (while (not (eq (char-after last-char) ?=))
+ (cond ((not (eq (process-status ispell-process) 'run))
+ (kill-ispell)
+ (signal 'ispell-startup-error nil)))
+ (accept-process-output ispell-process)
+ (setq last-char (- (point-max) 1)))
+ (goto-char (point-min))
+ (let ((greeting (read (current-buffer))))
+ (if (not (= (car greeting) 1))
+ (error "Bad ispell version: wanted 1, got %d" (car greeting)))
+ (message (car (cdr greeting))))
+ (delete-region (point-min) last-char))))
+
+;leaves buffer set to *ispell*, point at '='
+(defun ispell-sync (intr)
+ "Make sure ispell is ready for a command."
+ (if (or (null ispell-process)
+ (not (eq (process-status ispell-process) 'run)))
+ (start-ispell))
+ (if intr
+ (interrupt-process ispell-process))
+ (let (last-char)
+ (set-buffer (process-buffer ispell-process))
+ (bury-buffer (current-buffer))
+ (setq last-char (- (point-max) 1))
+ (while (not (eq (char-after last-char) ?=))
+ (accept-process-output ispell-process)
+ (setq last-char (- (point-max) 1)))
+ (goto-char last-char)))
+
+(defun ispell-cmd (&rest strings)
+ "Send a command to ispell. Choices are:
+
+word any word is checked for spelling. Result is
+
+ nil not found
+ t spelled ok
+ list of strings near misses
+
+:file filename scan the named file, and print the file offsets of
+ any misspelled words
+
+:insert word put word in private dictonary
+
+:accept word don't complain about word any more this session
+
+:dump write out the current private dictionary, if necessary.
+
+:reload reread ~/ispell.words
+
+:tex
+:troff
+:generic set type of parser to use when scanning whole files
+"
+ (save-excursion
+ (ispell-sync t)
+ (set-buffer (process-buffer ispell-process))
+ (bury-buffer (current-buffer))
+ (erase-buffer)
+ (setq ispell-next-message (point-min))
+ (while strings
+ (process-send-string ispell-process (car strings))
+ (setq strings (cdr strings)))
+ (process-send-string ispell-process "\n")
+ (accept-process-output ispell-process)
+ (ispell-sync nil)))
+
+(defun ispell-dump ()
+ (cond (ispell-dump-needed
+ (setq ispell-dump-needed nil)
+ (ispell-cmd ":dump"))))
+
+(defun ispell-insert (word)
+ (ispell-cmd ":insert " word)
+ (if ispell-bad-words
+ (setq ispell-recently-accepted (cons word ispell-recently-accepted)))
+ (setq ispell-dump-needed t))
+
+(defun ispell-accept (word)
+ (ispell-cmd ":accept " word)
+ (if ispell-bad-words
+ (setq ispell-recently-accepted (cons word ispell-recently-accepted))))
+
+
+(defun ispell-next-message ()
+ "Return the next message sent by the ispell subprocess."
+ (save-excursion
+ (set-buffer (process-buffer ispell-process))
+ (bury-buffer (current-buffer))
+ (save-restriction
+ (goto-char ispell-next-message)
+ (narrow-to-region (point)
+ (progn (forward-sexp 1) (point)))
+ (setq ispell-next-message (point))
+ (goto-char (point-min))
+ (read (current-buffer)))))
+
+(defun ispell-tex-buffer-p ()
+ (memq major-mode '(plain-TeX-mode LaTeX-mode)))
+
+(defun ispell (&optional buf start end)
+ "Run ispell over current buffer's visited file.
+First the file is scanned for misspelled words, then ispell
+enters a loop with the following commands for every misspelled word:
+
+DIGIT Near miss selector. If the misspelled word is close to
+ some words in the dictionary, they are offered as near misses.
+r Replace. Replace the word with a string you type. Each word
+ of your new string is also checked.
+i Insert. Insert this word in your private dictonary (kept in
+ `$HOME/ispell.words').
+a Accept. Accept this word for the rest of this editing session,
+ but don't put it in your private dictonary.
+l Lookup. Look for a word in the dictionary by fast binary
+ search, or search for a regular expression in the dictionary
+ using grep.
+SPACE Accept the word this time, but complain if it is seen again.
+q, C-G Leave the command loop. You can come back later with \\[ispell-next]."
+ (interactive)
+ (if (null start)
+ (setq start 0))
+ (if (null end)
+ (setq end 0))
+
+ (if (null buf)
+ (setq buf (current-buffer)))
+ (setq buf (get-buffer buf))
+ (if (null buf)
+ (error "Can't find buffer"))
+ (save-excursion
+ (set-buffer buf)
+ (let ((filename buffer-file-name)
+ (delete-temp nil))
+ (unwind-protect
+ (progn
+ (cond ((null filename)
+ (setq filename (make-temp-name "/usr/tmp/ispell"))
+ (setq delete-temp t)
+ (write-region (point-min) (point-max) filename))
+ ((and (buffer-modified-p buf)
+ (y-or-n-p (format "Save file %s? " filename)))
+ (save-buffer)))
+ (message "Ispell scanning file...")
+ (if (and ispell-enable-tex-parser
+ (ispell-tex-buffer-p))
+ (ispell-cmd ":tex")
+ (ispell-cmd ":generic"))
+ (ispell-cmd (format ":file %s %d %d" filename start end)))
+ (if delete-temp
+ (condition-case ()
+ (delete-file filename)
+ (file-error nil)))))
+ (message "Parsing ispell output ...")
+ (ispell-flush-bad-words)
+ (let (pos bad-words)
+ (while (numberp (setq pos (ispell-next-message)))
+ ;;ispell may check the words on the line following the end
+ ;;of the region - therefore, don't record anything out of range
+ (if (or (= end 0)
+ (< pos end))
+ (setq bad-words (cons (set-marker (make-marker) (+ pos 1))
+ bad-words))))
+ (setq bad-words (cons pos bad-words))
+ (setq ispell-bad-words (nreverse bad-words))))
+ (cond ((not (markerp (car ispell-bad-words)))
+ (setq ispell-bad-words nil)
+ (message "No misspellings."))
+ (t
+ (message "Ispell parsing done.")
+ (ispell-next))))
+
+(defun ispell-next ()
+ "Resume command loop for most recent ispell command."
+ (interactive)
+ (unwind-protect
+ (catch 'quit
+ (save-window-excursion
+ (save-excursion
+ (let (next)
+ (while (markerp (setq next (car ispell-bad-words)))
+ (switch-to-buffer (marker-buffer next))
+ (push-mark)
+ (ispell-point next "at saved position.")
+ (setq ispell-bad-words (cdr ispell-bad-words))
+ (set-marker next nil))))))
+ (cond ((null ispell-bad-words)
+ (error "Ispell has not yet been run."))
+ ((markerp (car ispell-bad-words))
+ (message (substitute-command-keys
+ "Type \\[ispell-next] to continue.")))
+ ((eq (car ispell-bad-words) nil)
+ (setq ispell-bad-words nil)
+ (message "No more misspellings (but checker was interrupted.)"))
+ ((eq (car ispell-bad-words) t)
+ (setq ispell-bad-words nil)
+ (message "Ispell done."))
+ (t
+ (setq ispell-bad-words nil)
+ (message "Bad ispell internal list"))))
+ (ispell-dump))
+
+
+(defun ispell-word ()
+ "Check the spelling of the word under the cursor.
+See `ispell' for more documentation."
+ (interactive)
+ (condition-case err
+ (catch 'quit
+ (save-window-excursion
+ (ispell-point (point) "at point."))
+ (ispell-dump))
+ (ispell-startup-error
+ (cond ((y-or-n-p "Problem starting ispell, use old-style spell instead? ")
+ (load-library "spell")
+ (define-key esc-map "$" 'spell-word)
+ (spell-word))))))
+
+(defun ispell-region (start &optional end)
+ "Check the spelling for all of the words in the region."
+ (interactive "r")
+ (ispell (current-buffer) start end))
+
+(defun ispell-letterp (c)
+ (and c
+ (or (and (>= c ?A) (<= c ?Z))
+ (and (>= c ?a) (<= c ?z))
+ (>= c 128))))
+
+(defun ispell-letter-or-quotep (c)
+ (and c
+ (or (and (>= c ?A) (<= c ?Z))
+ (and (>= c ?a) (<= c ?z))
+ (= c ?')
+ (>= c 128))))
+
+(defun ispell-find-word-start ()
+ ;;backward to a letter
+ (if (not (ispell-letterp (char-after (point))))
+ (while (and (not (bobp))
+ (not (ispell-letterp (char-after (- (point) 1)))))
+ (backward-char)))
+ ;;backward to beginning of word
+ (while (ispell-letter-or-quotep (char-after (- (point) 1)))
+ (backward-char))
+ (skip-chars-forward "'"))
+
+(defun ispell-find-word-end ()
+ (while (ispell-letter-or-quotep (char-after (point)))
+ (forward-char))
+ (skip-chars-backward "'"))
+
+(defun ispell-next-word ()
+ (while (and (not (eobp))
+ (not (ispell-letterp (char-after (point)))))
+ (forward-char)))
+
+;if end is nil, then do one word at start
+;otherwise, do all words from the beginning of the word where
+;start points, to the end of the word where end points
+(defun ispell-point (start message)
+ (let ((wend (make-marker))
+ rescan
+ end)
+ (save-excursion
+ (goto-char start)
+ (ispell-find-word-start) ;find correct word start
+ (setq start (point-marker))
+ (ispell-find-word-end) ;now find correct end
+ (setq end (point-marker))
+ (if (>= start end)
+ (error "No word %s" message))
+ (while (< start end)
+ (goto-char start)
+ (ispell-find-word-end) ;find end of current word
+ ;could be before 'end' if
+ ;user typed replacement
+ ;that is more than one word
+ (set-marker wend (point))
+ (setq rescan nil)
+ (setq word (buffer-substring start wend))
+ (cond ((ispell-still-bad word)
+ (goto-char start);just to show user where we are working
+ (sit-for 0)
+ (message (format "Ispell checking %s" word))
+ (ispell-cmd word)
+ (let ((message (ispell-next-message)))
+ (cond ((eq message t)
+ (message "%s: ok" word))
+ ((or (null message)
+ (consp message))
+ (setq rescan
+ (ispell-command-loop word start wend message)))
+ (t
+ (error "unknown ispell response %s" message))))))
+ (cond ((null rescan)
+ (goto-char wend)
+ (ispell-next-word)
+ (set-marker start (point)))))
+ ;;clear the choices buffer; otherwise it's hard for the user to tell
+ ;;when we get back to the command loop
+ (let ((buf (get-buffer "*ispell choices*")))
+ (cond (buf
+ (set-buffer buf)
+ (erase-buffer))))
+ (set-marker start nil)
+ (set-marker end nil)
+ (set-marker wend nil))))
+
+(defun ispell-still-bad (word)
+ (let ((words ispell-recently-accepted)
+ (ret t)
+ (case-fold-search t))
+ (while words
+ (cond ((eq (string-match (car words) word) 0)
+ (setq ret nil)
+ (setq words nil)))
+ (setq words (cdr words)))
+ ret))
+
+(defun ispell-show-choices (word message first-line)
+ ;;if there is only one window on the screen, make the ispell
+ ;;messages winow be small. otherwise just use the other window
+ (let* ((selwin (selected-window))
+ (resize (eq selwin (next-window)))
+ (buf (get-buffer-create "*ispell choices*"))
+ w)
+ (setq w (display-buffer buf))
+ (buffer-disable-undo buf)
+ (if resize
+ (unwind-protect
+ (progn
+ (select-window w)
+ (enlarge-window (- 6 (window-height w))))
+ (select-window selwin)))
+ (save-excursion
+ (set-buffer buf)
+ (bury-buffer buf)
+ (set-window-point w (point-min))
+ (set-window-start w (point-min))
+ (erase-buffer)
+ (insert first-line "\n")
+ (insert
+ "SPC skip; A accept; I insert; DIGIT select; R replace; \
+L lookup; Q quit\n")
+ (cond ((not (null message))
+ (let ((i 0))
+ (while (< i 3)
+ (let ((j 0))
+ (while (< j 3)
+ (let* ((n (+ (* j 3) i))
+ (choice (nth n message)))
+ (cond (choice
+ (let ((str (format "%d %s" n choice)))
+ (insert str)
+ (insert-char ? (- 20 (length str)))))))
+ (setq j (+ j 1))))
+ (insert "\n")
+ (setq i (+ i 1)))))))))
+
+(defun ispell-command-loop (word start end message)
+ (let ((flag t)
+ (rescan nil)
+ first-line)
+ (if (null message)
+ (setq first-line (concat "No near misses for '" word "'"))
+ (setq first-line (concat "Near misses for '" word "'")))
+ (while flag
+ (ispell-show-choices word message first-line)
+ (message "Ispell command: ")
+ (let ((c (downcase (read-char)))
+ replacement)
+ (cond ((and (>= c ?0)
+ (<= c ?9)
+ (setq replacement (nth (- c ?0) message)))
+ (ispell-replace start end replacement)
+ (setq flag nil))
+ ((= c ?q)
+ (throw 'quit nil))
+ ((= c ? )
+ (setq flag nil))
+ ((= c ?r)
+ (ispell-replace start end (read-string "Replacement: "))
+ (setq rescan t)
+ (setq flag nil))
+ ((= c ?i)
+ (ispell-insert word)
+ (setq flag nil))
+ ((= c ?a)
+ (ispell-accept word)
+ (setq flag nil))
+ ((= c ?l)
+ (let ((val (ispell-do-look word)))
+ (setq first-line (car val))
+ (setq message (cdr val))))
+ ((= c ??)
+ (message
+ "Type 'C-h d ispell' to the emacs main loop for more help")
+ (sit-for 2))
+ (t
+ (message "Bad ispell command")
+ (sit-for 2)))))
+ rescan))
+
+(defun ispell-do-look (bad-word)
+ (let (regex buf words)
+ (cond ((null ispell-have-new-look)
+ (setq regex (read-string "Lookup: ")))
+ (t
+ (setq regex (read-string "Lookup (regex): " "^"))))
+ (setq buf (get-buffer-create "*ispell look*"))
+ (save-excursion
+ (set-buffer buf)
+ (delete-region (point-min) (point-max))
+ (if ispell-have-new-look
+ (call-process "look" nil buf nil "-r" regex)
+ (call-process "look" nil buf nil regex))
+ (goto-char (point-min))
+ (forward-line 10)
+ (delete-region (point) (point-max))
+ (goto-char (point-min))
+ (while (not (= (point-min) (point-max)))
+ (end-of-line)
+ (setq words (cons (buffer-substring (point-min) (point)) words))
+ (forward-line)
+ (delete-region (point-min) (point)))
+ (kill-buffer buf)
+ (cons (format "Lookup '%s'" regex)
+ (reverse words)))))
+
+(defun ispell-replace (start end new)
+ (goto-char start)
+ (insert new)
+ (delete-region (point) end))
+
+(defun reload-ispell ()
+ "Tell ispell to re-read your private dictionary."
+ (interactive)
+ (ispell-cmd ":reload"))
+
+(define-key esc-map "$" 'ispell-word)
+;; This conflicts with set-selective-display. What should we do???
+;;(define-key ctl-x-map "$" 'ispell-next)
+
+(defun batch-make-ispell ()
+ (byte-compile-file "ispell.el")
+ (find-file "ispell.texinfo")
+ (let ((old-dir default-directory)
+ (default-directory "/tmp"))
+ (texinfo-format-buffer))
+ (Info-validate)
+ (if (get-buffer " *problems in info file*")
+ (kill-emacs 1))
+ (write-region (point-min) (point-max) "ispell.info"))
+
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