1;;; ja-dic-utl.el --- utilities for handling Japanese dictionary (SKK-JISYO.L) 2 3;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 4;; 2005, 2006, 2007 5;; National Institute of Advanced Industrial Science and Technology (AIST) 6;; Registration Number H14PRO021 7 8;; Keywords: mule, multilingual, Japanese 9 10;; This file is part of GNU Emacs. 11 12;; GNU Emacs is free software; you can redistribute it and/or modify 13;; it under the terms of the GNU General Public License as published by 14;; the Free Software Foundation; either version 2, or (at your option) 15;; any later version. 16 17;; GNU Emacs is distributed in the hope that it will be useful, 18;; but WITHOUT ANY WARRANTY; without even the implied warranty of 19;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20;; GNU General Public License for more details. 21 22;; You should have received a copy of the GNU General Public License 23;; along with GNU Emacs; see the file COPYING. If not, write to the 24;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 25;; Boston, MA 02110-1301, USA. 26 27;;; Commentary: 28 29;; This file provides a generic function to look up a Japanese 30;; dictionary of SKK format. 31;; 32;; SKK is a free Japanese input method running on Mule created by 33;; Masahiko Sato <masahiko@sato.riec.tohoku.ac.jp>. The Emacs Lisp 34;; library kkc.el provides a facility to convert a Japanese kana 35;; string to a kanji-kana-mixed string by using SKK's dictionary. 36;; 37;; The original SKK dictionary SKK-JISYO.L is converted to ja-dic.el 38;; by ja-dic-cnv.el. We get entries of the dictionary in four 39;; variables (listed below) by loading that file (or byte-compiled 40;; version ja-dic.elc). 41 42;;; Code: 43 44;; The following four variables are set by loading ja-dic.el[c]. 45(defvar skkdic-okuri-ari nil 46 "Nested alist for OKURI-ARI entries of SKK dictionary.") 47 48(defvar skkdic-postfix nil 49 "Nested alist for SETSUBIJI (postfix) entries of SKK dictionary.") 50 51(defvar skkdic-prefix nil 52 "Nested alist SETTOUJI (prefix) entries of SKK dictionary.") 53 54(defvar skkdic-okuri-nasi nil 55 "Nested alist for OKURI-NASI entries of SKK dictionary.") 56 57(defconst skkdic-okurigana-table 58 '((?$B$!(B . ?a) (?$B$"(B . ?a) (?$B$#(B . ?i) (?$B$$(B . ?i) (?$B$%(B . ?u) 59 (?$B$&(B . ?u) (?$B$'(B . ?e) (?$B$((B . ?e) (?$B$)(B . ?o) (?$B$*(B . ?o) 60 (?$B$+(B . ?k) (?$B$,(B . ?g) (?$B$-(B . ?k) (?$B$.(B . ?g) (?$B$/(B . ?k) 61 (?$B$0(B . ?g) (?$B$1(B . ?k) (?$B$2(B . ?g) (?$B$3(B . ?k) (?$B$4(B . ?g) 62 (?$B$5(B . ?s) (?$B$6(B . ?z) (?$B$7(B . ?s) (?$B$8(B . ?j) (?$B$9(B . ?s) 63 (?$B$:(B . ?z) (?$B$;(B . ?s) (?$B$<(B . ?z) (?$B$=(B . ?s) (?$B$>(B . ?z) 64 (?$B$?(B . ?t) (?$B$@(B . ?d) (?$B$A(B . ?t) (?$B$B(B . ?d) (?$B$C(B . ?t) 65 (?$B$D(B . ?t) (?$B$E(B . ?d) (?$B$F(B . ?t) (?$B$G(B . ?d) (?$B$H(B . ?t) (?$B$I(B . ?d) 66 (?$B$J(B . ?n) (?$B$K(B . ?n) (?$B$L(B . ?n) (?$B$M(B . ?n) (?$B$N(B . ?n) 67 (?$B$O(B . ?h) (?$B$P(B . ?b) (?$B$Q(B . ?p) (?$B$R(B . ?h) (?$B$S(B . ?b) 68 (?$B$T(B . ?p) (?$B$U(B . ?h) (?$B$V(B . ?b) (?$B$W(B . ?p) (?$B$X(B . ?h) 69 (?$B$Y(B . ?b) (?$B$Z(B . ?p) (?$B$[(B . ?h) (?$B$\(B . ?b) (?$B$](B . ?p) 70 (?$B$^(B . ?m) (?$B$_(B . ?m) (?$B$`(B . ?m) (?$B$a(B . ?m) (?$B$b(B . ?m) 71 (?$B$c(B . ?y) (?$B$d(B . ?y) (?$B$e(B . ?y) (?$B$f(B . ?y) (?$B$g(B . ?y) (?$B$h(B . ?y) 72 (?$B$i(B . ?r) (?$B$j(B . ?r) (?$B$k(B . ?r) (?$B$l(B . ?r) (?$B$m(B . ?r) 73 (?$B$o(B . ?w) (?$B$p(B . ?w) (?$B$q(B . ?w) (?$B$r(B . ?w) 74 (?$B$s(B . ?n) 75 ) 76 "Alist of Okuriganas vs trailing ASCII letters in OKURI-ARI entry.") 77 78(defun skkdic-merge-head-and-tail (heads tails postfix) 79 (let ((min-len 2) 80 l) 81 (while heads 82 (if (or (not postfix) 83 (>= (length (car heads)) min-len)) 84 (let ((tail tails)) 85 (while tail 86 (if (or postfix 87 (>= (length (car tail)) min-len)) 88 (setq l (cons (concat (car heads) (car tail)) l))) 89 (setq tail (cdr tail))))) 90 (setq heads (cdr heads))) 91 l)) 92 93(defconst skkdic-jisx0208-hiragana-block (nth 1 (split-char ?$B$"(B))) 94 95(defun skkdic-lookup-key (seq len &optional postfix prefer-noun) 96 "Return a list of conversion string for sequence SEQ of length LEN. 97 98SEQ is a vector of Kana characters to be converted by SKK dictionary. 99If LEN is shorter than the length of KEYSEQ, the first LEN keys in SEQ 100are took into account. 101 102Optional 3rd arg POSTFIX non-nil means SETSUBIJI (postfix) are also 103considered to find conversion strings. 104 105Optional 4th arg PREFER-NOUN non-nil means that the conversions 106without okurigana are placed at the head of the returned list." 107 (or skkdic-okuri-nasi 108 (condition-case err 109 (load-library "ja-dic/ja-dic") 110 (error (ding) 111 (with-output-to-temp-buffer "*Help*" 112 (princ "The library `ja-dic' can't be loaded. 113 114The most common case is that you have not yet installed the library 115included in LEIM (Libraries of Emacs Input Method) which is 116distributed separately from Emacs. 117 118LEIM is available from the same ftp directory as Emacs.")) 119 (signal (car err) (cdr err))))) 120 121 (let ((vec (make-vector len 0)) 122 (i 0) 123 entry) 124 ;; At first, generate vector VEC from SEQ for looking up SKK 125 ;; alists. Nth element in VEC corresponds to Nth element in SEQ. 126 ;; The values are decided as follows. 127 ;; If SEQ[N] is `$B!<(B', VEC[N] is 0, 128 ;; else if SEQ[N] is a Hiragana character, VEC[N] is: 129 ;; ((The 2nd position code of SEQ[N]) - 32), 130 ;; else VEC[N] is 128. 131 (while (< i len) 132 (let ((ch (aref seq i)) 133 elts) 134 (if (= ch ?$B!<(B) 135 (aset vec i 0) 136 (setq elts (split-char ch)) 137 (if (and (eq (car elts) 'japanese-jisx0208) 138 (= (nth 1 elts) skkdic-jisx0208-hiragana-block)) 139 (aset vec i (- (nth 2 elts) 32)) 140 (aset vec i 128)))) 141 (setq i (1+ i))) 142 143 ;; Search OKURI-NASI entries. 144 (setq entry (lookup-nested-alist vec skkdic-okuri-nasi len 0 t)) 145 (if (consp (car entry)) 146 (setq entry (copy-sequence (car entry))) 147 (setq entry nil)) 148 149 (if postfix 150 ;; Search OKURI-NASI entries with postfixes. 151 (let ((break (max (- len (car skkdic-postfix)) 1)) 152 entry-head entry-postfix entry2) 153 (while (< break len) 154 (if (and (setq entry-head 155 (lookup-nested-alist vec skkdic-okuri-nasi 156 break 0 t)) 157 (consp (car entry-head)) 158 (setq entry-postfix 159 (lookup-nested-alist vec skkdic-postfix 160 len break t)) 161 (consp (car entry-postfix)) 162 (setq entry2 (skkdic-merge-head-and-tail 163 (car entry-head) (car entry-postfix) t))) 164 (if entry 165 (nconc entry entry2) 166 (setq entry entry2))) 167 (setq break (1+ break))))) 168 169 ;; Search OKURI-NASI entries with prefixes. 170 (let ((break (min (car skkdic-prefix) (- len 2))) 171 entry-prefix entry-tail entry2) 172 (while (> break 0) 173 (if (and (setq entry-prefix 174 (lookup-nested-alist vec skkdic-prefix break 0 t)) 175 (consp (car entry-prefix)) 176 (setq entry-tail 177 (lookup-nested-alist vec skkdic-okuri-nasi len break t)) 178 (consp (car entry-tail)) 179 (setq entry2 (skkdic-merge-head-and-tail 180 (car entry-prefix) (car entry-tail) nil))) 181 (progn 182 (if entry 183 (nconc entry entry2) 184 (setq entry entry2)))) 185 (setq break (1- break)))) 186 187 ;; Search OKURI-ARI entries. 188 (let ((okurigana (assq (aref seq (1- len)) skkdic-okurigana-table)) 189 orig-element entry2) 190 (if okurigana 191 (progn 192 (setq orig-element (aref vec (1- len))) 193 (aset vec (1- len) (- (cdr okurigana))) 194 (if (and (setq entry2 (lookup-nested-alist vec skkdic-okuri-ari 195 len 0 t)) 196 (consp (car entry2))) 197 (progn 198 (setq entry2 (copy-sequence (car entry2))) 199 (let ((l entry2) 200 (okuri (char-to-string (aref seq (1- len))))) 201 (while l 202 (setcar l (concat (car l) okuri)) 203 (setq l (cdr l))) 204 (if entry 205 (if prefer-noun 206 (nconc entry entry2) 207 (setq entry2 (nreverse entry2)) 208 (nconc entry2 entry) 209 (setq entry entry2)) 210 (setq entry (nreverse entry2)))))) 211 (aset vec (1- len) orig-element)))) 212 213 entry)) 214 215;; 216(provide 'ja-dic-utl) 217 218;; Local Variables: 219;; coding: iso-2022-7bit 220;; End: 221 222;;; arch-tag: df2218fa-469c-40f6-bace-7f89a053f9c0 223;;; ja-dic-utl.el ends here 224