1 ;; skkdic-utl.el -- utility functions for handling skkdic.el
3 ;; Copyright (C) 1995 Free Software Foundation, Inc.
4 ;; Copyright (C) 1995 Electrotechnical Laboratory, JAPAN.
6 ;; Keywords: mule, multilingual, Japanese, SKK
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
27 ;; SKK is a free Japanese input method running on Mule created by
28 ;; Masahiko Sato <masahiko@sato.riec.tohoku.ac.jp>. A dictionary of
29 ;; SKK can be converted by `skkdic-convert' (skkdic-conv.el) to a file
30 ;; "skkdic.el" in which the dictionary entries are defined in the
31 ;; format which can be handled by the following functions.
35 (defvar skkdic-okuri-ari nil
36 "OKURI-ARI entries of SKK dictionary.")
37 (defvar skkdic-postfix nil
38 "POSTFIX entries of SKK dictionary.")
39 (defvar skkdic-prefix nil
40 "PREFIX entries of SKK dictionary.")
41 (defvar skkdic-okuri-nasi nil
42 "OKURI-NASI entries of SKK dictionary.")
44 ;; Alist of Okuriganas vs trailing ASCII letters in OKURI-ARI entry.
45 (defconst skkdic-okurigana-table
46 '((?
\e$B$!
\e(B . ?a) (?
\e$B$"
\e(B . ?a) (?
\e$B$#
\e(B . ?i) (?
\e$B$$
\e(B . ?i) (?
\e$B$%
\e(B . ?u)
47 (?
\e$B$&
\e(B . ?u) (?
\e$B$'
\e(B . ?e) (?
\e$B$(
\e(B . ?e) (?
\e$B$)
\e(B . ?o) (?
\e$B$*
\e(B . ?o)
48 (?
\e$B$+
\e(B . ?k) (?
\e$B$,
\e(B . ?g) (?
\e$B$-
\e(B . ?k) (?
\e$B$.
\e(B . ?g) (?
\e$B$/
\e(B . ?k)
49 (?
\e$B$0
\e(B . ?g) (?
\e$B$1
\e(B . ?k) (?
\e$B$2
\e(B . ?g) (?
\e$B$3
\e(B . ?k) (?
\e$B$4
\e(B . ?g)
50 (?
\e$B$5
\e(B . ?s) (?
\e$B$6
\e(B . ?z) (?
\e$B$7
\e(B . ?s) (?
\e$B$8
\e(B . ?j) (?
\e$B$9
\e(B . ?s)
51 (?
\e$B$:
\e(B . ?z) (?
\e$B$;
\e(B . ?s) (?
\e$B$<
\e(B . ?z) (?
\e$B$=
\e(B . ?s) (?
\e$B$>
\e(B . ?z)
52 (?
\e$B$?
\e(B . ?t) (?
\e$B$@
\e(B . ?d) (?
\e$B$A
\e(B . ?t) (?
\e$B$B
\e(B . ?d) (?
\e$B$C
\e(B . ?t)
53 (?
\e$B$D
\e(B . ?t) (?
\e$B$E
\e(B . ?d) (?
\e$B$F
\e(B . ?t) (?
\e$B$G
\e(B . ?d) (?
\e$B$H
\e(B . ?t) (?
\e$B$I
\e(B . ?d)
54 (?
\e$B$J
\e(B . ?n) (?
\e$B$K
\e(B . ?n) (?
\e$B$L
\e(B . ?n) (?
\e$B$M
\e(B . ?n) (?
\e$B$N
\e(B . ?n)
55 (?
\e$B$O
\e(B . ?h) (?
\e$B$P
\e(B . ?b) (?
\e$B$Q
\e(B . ?p) (?
\e$B$R
\e(B . ?h) (?
\e$B$S
\e(B . ?b)
56 (?
\e$B$T
\e(B . ?p) (?
\e$B$U
\e(B . ?h) (?
\e$B$V
\e(B . ?b) (?
\e$B$W
\e(B . ?p) (?
\e$B$X
\e(B . ?h)
57 (?
\e$B$Y
\e(B . ?b) (?
\e$B$Z
\e(B . ?p) (?
\e$B$[
\e(B . ?h) (?
\e$B$\
\e(B . ?b) (?
\e$B$]
\e(B . ?p)
58 (?
\e$B$^
\e(B . ?m) (?
\e$B$_
\e(B . ?m) (?
\e$B$`
\e(B . ?m) (?
\e$B$a
\e(B . ?m) (?
\e$B$b
\e(B . ?m)
59 (?
\e$B$c
\e(B . ?y) (?
\e$B$d
\e(B . ?y) (?
\e$B$e
\e(B . ?y) (?
\e$B$f
\e(B . ?y) (?
\e$B$g
\e(B . ?y) (?
\e$B$h
\e(B . ?y)
60 (?
\e$B$i
\e(B . ?r) (?
\e$B$j
\e(B . ?r) (?
\e$B$k
\e(B . ?r) (?
\e$B$l
\e(B . ?r) (?
\e$B$m
\e(B . ?r)
61 (?
\e$B$o
\e(B . ?w) (?
\e$B$p
\e(B . ?w) (?
\e$B$q
\e(B . ?w) (?
\e$B$r
\e(B . ?w)
65 (defconst skkdic-jbytes
66 (charset-bytes 'japanese-jisx0208))
68 (defun skkdic-merge-head-and-tail (heads tails postfix)
69 (let ((min-len (* skkdic-jbytes 2))
73 (>= (length (car heads)) min-len))
77 (>= (length (car tail)) min-len))
78 (setq l (cons (concat (car heads) (car tail)) l)))
79 (setq tail (cdr tail)))))
80 (setq heads (cdr heads)))
83 (defconst skkdic-jisx0208-hiragana-block (nth 1 (split-char ?
\e$B$"
\e(B)))
85 (defun skkdic-lookup-key (seq len &optional postfix)
86 "Return a list of conversion string for sequence SEQ of length LEN.
88 SEQ is a vector of Kana characters to be converted by SKK dictionary.
89 If LEN is shorter than the length of KEYSEQ, the first LEN keys in SEQ
90 are took into account.
92 Postfixes are handled only if the optional argument POSTFIX is non-nil."
95 (load-library "skk/skkdic")
97 (with-output-to-temp-buffer "*Help*"
98 (princ "The library `skkdic' can't be loaded.
100 The most common case is that you have not yet installed the library
101 included in LEIM (Libraries of Emacs Input Method) which is
102 distributed separately from Emacs.
104 LEIM is available from the same ftp directory as Emacs."))
105 (signal (car err) (cdr err)))))
107 (let ((vec (make-vector len 0))
110 ;; At first, generate vector VEC from SEQ for looking up SKK
111 ;; alists. Nth element in VEC corresponds to Nth element in SEQ.
112 ;; The values are decided as follows.
113 ;; If SEQ[N] is `
\e$B!<
\e(B', VEC[N] is 0,
114 ;; Else if SEQ[N] is a Hiragana character, VEC[N] is:
115 ;; ((The 2nd position code o SEQ[N]) - 32),
116 ;; ELse VEC[N] is 128.
118 (let ((ch (aref seq i))
120 (if (= ch ?
\e$B!<
\e(B)
122 (setq elts (split-char ch))
123 (if (and (eq (car elts) 'japanese-jisx0208)
124 (= (nth 1 elts) skkdic-jisx0208-hiragana-block))
125 (aset vec i (- (nth 2 elts) 32))
129 ;; Search OKURI-NASI entries.
130 (setq entry (lookup-nested-alist vec skkdic-okuri-nasi len 0 t))
131 (if (consp (car entry))
132 (setq entry (copy-sequence (car entry)))
136 ;; Search OKURI-NASI entries with postfixes.
137 (let ((break (max (- len (car skkdic-postfix)) 1))
138 entry-head entry-postfix entry2)
140 (if (and (setq entry-head
141 (lookup-nested-alist vec skkdic-okuri-nasi
143 (consp (car entry-head))
145 (lookup-nested-alist vec skkdic-postfix
147 (consp (car entry-postfix))
148 (setq entry2 (skkdic-merge-head-and-tail
149 (car entry-head) (car entry-postfix) t)))
152 (setq entry entry2)))
153 (setq break (1+ break)))))
155 ;; Search OKURI-NASI entries with prefixes.
156 (let ((break (min (car skkdic-prefix) (- len 2)))
157 entry-prefix entry-tail entry2)
159 (if (and (setq entry-prefix
160 (lookup-nested-alist vec skkdic-prefix break 0 t))
161 (consp (car entry-prefix))
163 (lookup-nested-alist vec skkdic-okuri-nasi len break t))
164 (consp (car entry-tail))
165 (setq entry2 (skkdic-merge-head-and-tail
166 (car entry-prefix) (car entry-tail) nil)))
169 (setq entry entry2)))
170 (setq break (1- break))))
172 ;; Search OKURI-ARI entries.
173 (let ((okurigana (assq (aref seq (1- len)) skkdic-okurigana-table))
177 (setq orig-element (aref vec (1- len)))
178 (aset vec (1- len) (- (cdr okurigana)))
179 (if (and (setq entry2 (lookup-nested-alist vec skkdic-okuri-ari
181 (consp (car entry2)))
183 (setq entry2 (copy-sequence (car entry2)))
185 (okuri (char-to-string (aref seq (1- len)))))
187 (setcar l (concat (car l) okuri))
191 (setq entry entry2)))))
192 (aset vec (1- len) orig-element))))
197 (provide 'skkdic-utl)
199 ;; skkdic-utl.el ends here