;;; skk-auto.el --- 送り仮名の自動処理のためのプログラム -*- coding: iso-2022-jp -*-

;; Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
;;               1998, 1999, 2001
;;   Masahiko Sato <masahiko@kuis.kyoto-u.ac.jp>

;; Author: Masahiko Sato <masahiko@kuis.kyoto-u.ac.jp>
;; Maintainer: SKK Development Team <skk@ring.gr.jp>
;; Version: $Id: skk-auto.el,v 1.21 2010/08/02 15:21:04 skk-cvs Exp $
;; Keywords: japanese, mule, input method
;; Last Modified: $Date: 2010/08/02 15:21:04 $

;; This file is part of Daredevil SKK.

;; Daredevil SKK 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 2, or
;; (at your option) any later version.

;; Daredevil SKK 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 Daredevil SKK, see the file COPYING.  If not, write to
;; the Free Software Foundation Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.

;;; Commentary:

;;; Code:

(eval-when-compile
  (require 'skk-macs)
  (require 'skk-vars))

;;;###autoload
(defun skk-okuri-search-1 ()
  (when (and (not (or skk-abbrev-mode
		      skk-process-okuri-early
		      skk-henkan-okurigana))
	     ;; we don't do auto-okuri-process
	     ;; if henkan key contains numerals.
	     (not (skk-numeric-p))
	     (> (length skk-henkan-key) 1))
    (let (l)
      (setq skk-okuri-index-min (length skk-henkan-list)
	    l (funcall skk-okuri-search-function)
	    skk-okuri-index-max (+ skk-okuri-index-min (length l)))
      (if (not skk-katakana)
	  l
	(mapcar (function
		 (lambda (e)
		   (skk-hiragana-to-katakana e)))
		l)))))

(defun skk-okuri-search-subr-original ()
  ;; skk-okuri-search のサブルーチン。見つけたエントリのリストを返す。
  (let* ((henkan-key skk-henkan-key)
	 (key (substring henkan-key 0 1))
	 (len (length henkan-key))
	 (key1 (concat "\n" key))
	 key2 len2 key3 len3 okuri3
	 ;; case-fold-search は、辞書バッファでは常に nil。
	 ;;case-fold-search
	 (inhibit-quit t)
	 key-cand-alist p q r)
    (save-match-data
      (with-current-buffer (skk-get-jisyo-buffer skk-jisyo)
	(goto-char skk-okuri-ari-min)
	(while (search-forward key1 skk-okuri-ari-max t)
	  (setq p (point)
		key2 (concat key (buffer-substring-no-properties
				  p (- (search-forward " ") 2)))
		len2 (length key2))
	  (when (and (<= len2 len)
			(string= key2 (substring henkan-key 0 len2)))
	    (let ((cont t))
	      (skk-save-point
	       (end-of-line)
	       (setq q (point)))
	      (while (and cont (search-forward "/[" q t))
		(setq r (point))
		(setq okuri3 (buffer-substring-no-properties
			      r
			      (1- (search-forward "/")))
		      key3 (concat key2 okuri3)
		      len3 (length key3))
		(when (and (<= len3 len)
			   (string= key3 (substring henkan-key 0 len3)))
		  ;; finally found a candidate!
		  (let ((okuri
			 (concat okuri3 (substring henkan-key len3 len)))
			cand)
		    (while (not (eq (following-char) ?\]))
		      (setq cand
			    (concat
			     (buffer-substring-no-properties
			      (point)
			      (1- (search-forward "/" skk-okuri-ari-max t)))
			     okuri))
		      ;; 見出し語が違っても候補が同じことがあり得る。
		      ;;   かんz /感/[じ/感/]/
		      ;;   かんj /感/[じ/感/]/
		      ;; など。
		      (unless (rassoc cand key-cand-alist)
			(setq key-cand-alist (cons (cons key3 cand)
						   key-cand-alist))))
		    ;; it is not necessary to seach for "\[" on this line
		    ;; any more
		    (setq cont nil)))))))
	;; key3 の長いもの順にソートして返す。
	(mapcar (function
		 (lambda (x)
		   (cdr x)))
		(sort (nreverse key-cand-alist)
		      (function
		       (lambda (x y)
			 (skk-string< (car y) (car x))))))))))

;;;###autoload
(defun skk-adjust-search-prog-list-for-auto-okuri ()
  ;; `skk-auto-okuri-process' が non-nil であれば
  ;; `skk-search-prog-list' に `skk-okuri-search' を加える。
  ;;
  ;; `skk-okuri-search' を加える位置については、skk-jisyo の
  ;; 後が最良かどうかは分らないので、オプションで変更できる
  ;; ようにすべきだが...。
  (unless (member '(skk-okuri-search)
		  (default-value 'skk-search-prog-list))
    (let ((pl (default-value 'skk-search-prog-list))
	  (n 0) dic mark)
      (while pl
	(setq dic (car pl))
	(if (memq (nth 1 dic)
		  '(skk-jisyo skk-rdbms-private-jisyo-table))
	    (setq mark n
		  pl nil)
	  (setq pl (cdr pl)
		n (1+ n))))
      (when mark
	(skk-splice-in (default-value 'skk-search-prog-list)
		       (1+ mark)
		       '((skk-okuri-search)))))))

;;(add-hook 'skk-mode-hook 'skk-adjust-search-prog-list-for-auto-okuri)

(run-hooks 'skk-auto-load-hook)

(provide 'skk-auto)

;;; skk-auto.el ends here
