Commit d299ee07 authored by Richard M. Stallman's avatar Richard M. Stallman
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Initial revision

parent 63f77899
;;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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