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* lisp/language/japan-util.el (setup-japanese-environment-internal): Prefer UTF-8 for Cygwin and other Posix hosts; prefer Codepage 932 on DOS/Windows. (Bug#69493)
327 lines
14 KiB
EmacsLisp
327 lines
14 KiB
EmacsLisp
;;; japan-util.el --- utilities for Japanese -*- lexical-binding: t; -*-
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;; Copyright (C) 2001-2024 Free Software Foundation, Inc.
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;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
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;; 2005, 2006, 2007, 2008, 2009, 2010, 2011
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;; National Institute of Advanced Industrial Science and Technology (AIST)
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;; Registration Number H14PRO021
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;; Keywords: mule, multilingual, Japanese
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Code:
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;;;###autoload
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(defun setup-japanese-environment-internal ()
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(prefer-coding-system (if (memq system-type '(windows-nt ms-dos))
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'japanese-cp932
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'utf-8))
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(use-cjk-char-width-table 'ja_JP))
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(defconst japanese-kana-table
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'((?あ ?ア ?ｱ) (?い ?イ ?ｲ) (?う ?ウ ?ｳ) (?え ?エ ?ｴ) (?お ?オ ?ｵ)
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(?か ?カ ?ｶ) (?き ?キ ?ｷ) (?く ?ク ?ｸ) (?け ?ケ ?ｹ) (?こ ?コ ?ｺ)
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(?さ ?サ ?ｻ) (?し ?シ ?ｼ) (?す ?ス ?ｽ) (?せ ?セ ?ｾ) (?そ ?ソ ?ｿ)
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(?た ?タ ?ﾀ) (?ち ?チ ?ﾁ) (?つ ?ツ ?ﾂ) (?て ?テ ?ﾃ) (?と ?ト ?ﾄ)
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(?な ?ナ ?ﾅ) (?に ?ニ ?ﾆ) (?ぬ ?ヌ ?ﾇ) (?ね ?ネ ?ﾈ) (?の ?ノ ?ﾉ)
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(?は ?ハ ?ﾊ) (?ひ ?ヒ ?ﾋ) (?ふ ?フ ?ﾌ) (?へ ?ヘ ?ﾍ) (?ほ ?ホ ?ﾎ)
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(?ま ?マ ?ﾏ) (?み ?ミ ?ﾐ) (?む ?ム ?ﾑ) (?め ?メ ?ﾒ) (?も ?モ ?ﾓ)
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(?や ?ヤ ?ﾔ) (?ゆ ?ユ ?ﾕ) (?よ ?ヨ ?ﾖ)
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(?ら ?ラ ?ﾗ) (?り ?リ ?ﾘ) (?る ?ル ?ﾙ) (?れ ?レ ?ﾚ) (?ろ ?ロ ?ﾛ)
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(?わ ?ワ ?ﾜ) (?ゐ ?ヰ "ｲ") (?ゑ ?ヱ "ｴ") (?を ?ヲ ?ｦ)
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(?ん ?ン ?ﾝ)
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(?が ?ガ "ｶﾞ") (?ぎ ?ギ "ｷﾞ") (?ぐ ?グ "ｸﾞ") (?げ ?ゲ "ｹﾞ") (?ご ?ゴ "ｺﾞ")
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(?ざ ?ザ "ｻﾞ") (?じ ?ジ "ｼﾞ") (?ず ?ズ "ｽﾞ") (?ぜ ?ゼ "ｾﾞ") (?ぞ ?ゾ "ｿﾞ")
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(?だ ?ダ "ﾀﾞ") (?ぢ ?ヂ "ﾁﾞ") (?づ ?ヅ "ﾂﾞ") (?で ?デ "ﾃﾞ") (?ど ?ド "ﾄﾞ")
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(?ば ?バ "ﾊﾞ") (?び ?ビ "ﾋﾞ") (?ぶ ?ブ "ﾌﾞ") (?べ ?ベ "ﾍﾞ") (?ぼ ?ボ "ﾎﾞ")
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(?ぱ ?パ "ﾊﾟ") (?ぴ ?ピ "ﾋﾟ") (?ぷ ?プ "ﾌﾟ") (?ぺ ?ペ "ﾍﾟ") (?ぽ ?ポ "ﾎﾟ")
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(?ぁ ?ァ ?ｧ) (?ぃ ?ィ ?ｨ) (?ぅ ?ゥ ?ｩ) (?ぇ ?ェ ?ｪ) (?ぉ ?ォ ?ｫ)
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(?っ ?ッ ?ｯ)
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(?ゃ ?ャ ?ｬ) (?ゅ ?ュ ?ｭ) (?ょ ?ョ ?ｮ)
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(?ゎ ?ヮ "ﾜ")
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(?ゝ ?ヽ) (?ゞ ?ヾ)
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("う゛" ?ヴ "ｳﾞ") (nil ?ヵ "ｶ") (nil ?ヶ "ｹ"))
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"Japanese JISX0208 Kana character table.
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Each element is of the form (HIRAGANA KATAKANA HANKAKU-KATAKANA), where
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HIRAGANA and KATAKANA belong to `japanese-jisx0208',
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HANKAKU-KATAKANA belongs to `japanese-jisx0201-kana'.")
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;; Put properties 'katakana, 'hiragana, and 'jix0201 to each Japanese
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;; kana characters for conversion among them.
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(let ((l japanese-kana-table)
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slot hiragana katakana jisx0201)
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(while l
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(setq slot (car l)
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hiragana (car slot) katakana (nth 1 slot) jisx0201 (nth 2 slot)
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l (cdr l))
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(if hiragana
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(if (stringp hiragana)
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(if (> (length hiragana) 1)
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(let ((hira (aref hiragana 0)))
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(put-char-code-property
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hira 'kana-composition
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(cons (cons (aref hiragana 1) katakana)
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(get-char-code-property hira 'kana-composition)))))
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(put-char-code-property hiragana 'katakana katakana)
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(put-char-code-property hiragana 'jisx0201 jisx0201)))
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(when (integerp katakana)
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(put-char-code-property katakana 'hiragana hiragana)
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(put-char-code-property katakana 'jisx0201 jisx0201))
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(if jisx0201
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(if (stringp jisx0201)
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(if (> (length jisx0201) 1)
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(let ((kana (aref jisx0201 0)))
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(put-char-code-property
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kana 'kana-composition
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(cons (cons (aref jisx0201 1) katakana)
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(get-char-code-property kana 'kana-composition)))))
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(put-char-code-property jisx0201 'hiragana hiragana)
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(put-char-code-property jisx0201 'katakana katakana)
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(put-char-code-property jisx0201 'jisx0208 katakana)))))
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(defconst japanese-symbol-table
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'((?\ ?\ ) (?， ?,) (?． ?.) (?、 nil ?､) (?。 nil ?｡) (?・ nil ?･)
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(?： ?:) (?； ?\;) (?？ ??) (?！ ?!) (?゛ nil ?ﾞ) (?゜ nil ?ﾟ)
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(?´ ?') (?｀ ?`) (?＾ ?^) (?＿ ?_) (?ー nil ?ｰ) (?— ?-) (?‐ ?-)
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(?／ ?/) (?＼ ?\\) (?〜 ?~) (?｜ ?|) (?‘ ?`) (?’ ?') (?“ ?\") (?” ?\")
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(?\（ ?\() (?\） ?\)) (?\［ ?\[) (?\］ ?\]) (?\｛ ?{) (?\｝ ?})
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(?〈 ?<) (?〉 ?>) (?\「 nil ?\｢) (?\」 nil ?\｣)
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(?＋ ?+) (?− ?-) (?＝ ?=) (?＜ ?<) (?＞ ?>)
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(?′ ?') (?″ ?\") (?￥ ?\\) (?＄ ?$) (?％ ?%) (?＃ ?#) (?＆ ?&) (?＊ ?*)
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(?＠ ?@)
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;; cp932-2-byte
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(#x2015 ?-) (#xFF5E ?~) (#xFF0D ?-))
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"Japanese JISX0208 and CP932 symbol character table.
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Each element is of the form (SYMBOL ASCII HANKAKU), where SYMBOL
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belongs to `japanese-jisx0208' or `cp932', ASCII belongs to `ascii',
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and HANKAKU belongs to `japanese-jisx0201-kana'.")
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;; Put properties 'jisx0208, 'jisx0201, and 'ascii to each Japanese
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;; symbol and ASCII characters for conversion among them.
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(let ((l japanese-symbol-table)
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slot jisx0208 ascii jisx0201)
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(while l
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(setq slot (car l)
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jisx0208 (car slot) ascii (nth 1 slot) jisx0201 (nth 2 slot)
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l (cdr l))
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(if ascii
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(progn
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(put-char-code-property jisx0208 'ascii ascii)
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(if (encode-char jisx0208 'japanese-jisx0208)
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(put-char-code-property ascii 'jisx0208 jisx0208))))
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(if jisx0201
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(progn
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(put-char-code-property jisx0208 'jisx0201 jisx0201)
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(if (encode-char jisx0208 'japanese-jisx0208)
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(put-char-code-property jisx0201 'jisx0208 jisx0208))))))
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(defconst japanese-alpha-numeric-table
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'((?０ . ?0) (?１ . ?1) (?２ . ?2) (?３ . ?3) (?４ . ?4)
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(?５ . ?5) (?６ . ?6) (?７ . ?7) (?８ . ?8) (?９ . ?9)
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(?Ａ . ?A) (?Ｂ . ?B) (?Ｃ . ?C) (?Ｄ . ?D) (?Ｅ . ?E)
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(?Ｆ . ?F) (?Ｇ . ?G) (?Ｈ . ?H) (?Ｉ . ?I) (?Ｊ . ?J)
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(?Ｋ . ?K) (?Ｌ . ?L) (?Ｍ . ?M) (?Ｎ . ?N) (?Ｏ . ?O)
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(?Ｐ . ?P) (?Ｑ . ?Q) (?Ｒ . ?R) (?Ｓ . ?S) (?Ｔ . ?T)
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(?Ｕ . ?U) (?Ｖ . ?V) (?Ｗ . ?W) (?Ｘ . ?X) (?Ｙ . ?Y) (?Ｚ . ?Z)
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(?ａ . ?a) (?ｂ . ?b) (?ｃ . ?c) (?ｄ . ?d) (?ｅ . ?e)
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(?ｆ . ?f) (?ｇ . ?g) (?ｈ . ?h) (?ｉ . ?i) (?ｊ . ?j)
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(?ｋ . ?k) (?ｌ . ?l) (?ｍ . ?m) (?ｎ . ?n) (?ｏ . ?o)
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(?ｐ . ?p) (?ｑ . ?q) (?ｒ . ?r) (?ｓ . ?s) (?ｔ . ?t)
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(?ｕ . ?u) (?ｖ . ?v) (?ｗ . ?w) (?ｘ . ?x) (?ｙ . ?y) (?ｚ . ?z))
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"Japanese JISX0208 alpha numeric character table.
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Each element is of the form (ALPHANUMERIC . ASCII), where ALPHANUMERIC
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belongs to `japanese-jisx0208', ASCII belongs to `ascii'.")
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;; Put properties 'jisx0208 and 'ascii to each Japanese alpha numeric
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;; and ASCII characters for conversion between them.
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(let ((l japanese-alpha-numeric-table)
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slot jisx0208 ascii)
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(while l
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(setq slot (car l)
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jisx0208 (car slot) ascii (cdr slot)
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l (cdr l))
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(put-char-code-property jisx0208 'ascii ascii)
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(put-char-code-property ascii 'jisx0208 jisx0208)))
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;; Convert string STR by FUNC and return a resulting string.
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(defun japanese-string-conversion (str func &rest args)
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(let ((buf (get-buffer-create " *Japanese work*")))
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(with-current-buffer buf
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(erase-buffer)
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(insert str)
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(apply func 1 (point) args)
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(buffer-string))))
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;;;###autoload
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(defun japanese-katakana (obj &optional hankaku)
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"Convert argument to Katakana and return that.
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The argument may be a character or string. The result has the same type.
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The argument object is not altered--the value is a copy.
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Optional argument HANKAKU t means to convert to `hankaku' Katakana
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\(`japanese-jisx0201-kana'), in which case return value
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may be a string even if OBJ is a character if two Katakanas are
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necessary to represent OBJ."
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(if (stringp obj)
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(japanese-string-conversion obj 'japanese-katakana-region hankaku)
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(or (get-char-code-property obj (if hankaku 'jisx0201 'katakana))
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obj)))
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;;;###autoload
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(defun japanese-hiragana (obj)
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"Convert argument to Hiragana and return that.
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The argument may be a character or string. The result has the same type.
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The argument object is not altered--the value is a copy."
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(if (stringp obj)
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(japanese-string-conversion obj 'japanese-hiragana-region)
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(or (get-char-code-property obj 'hiragana)
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obj)))
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;;;###autoload
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(defun japanese-hankaku (obj &optional ascii-only)
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"Convert argument to `hankaku' and return that.
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The argument may be a character or string. The result has the same type.
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The argument object is not altered--the value is a copy.
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Optional argument ASCII-ONLY non-nil means to return only ASCII character."
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(if (stringp obj)
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(japanese-string-conversion obj 'japanese-hankaku-region ascii-only)
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(or (and (not ascii-only)
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(get-char-code-property obj 'jisx0201))
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(get-char-code-property obj 'ascii)
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obj)))
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;;;###autoload
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(defun japanese-zenkaku (obj)
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"Convert argument to `zenkaku' and return that.
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The argument may be a character or string. The result has the same type.
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The argument object is not altered--the value is a copy."
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(if (stringp obj)
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(japanese-string-conversion obj 'japanese-zenkaku-region)
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(or (get-char-code-property obj 'jisx0208)
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obj)))
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(defun japanese-replace-region (from to string)
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"Replace the region specified by FROM and TO to STRING."
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(goto-char from)
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(insert string)
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(delete-char (- to from)))
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;;;###autoload
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(defun japanese-katakana-region (from to &optional hankaku)
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"Convert Japanese `hiragana' chars in the region to `katakana' chars.
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Optional argument HANKAKU t means to convert to `hankaku katakana' character
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of which charset is `japanese-jisx0201-kana'."
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(interactive "r\nP")
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(save-restriction
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(narrow-to-region from to)
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(save-excursion
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(goto-char (point-min))
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(while (re-search-forward "\\cH\\|\\cK" nil t)
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(let* ((kana (preceding-char))
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(composition
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(and (not hankaku)
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(get-char-code-property kana 'kana-composition)))
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slot) ;; next
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(if (and composition (setq slot (assq (following-char) composition)))
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(japanese-replace-region (match-beginning 0) (1+ (point))
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(cdr slot))
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(let ((kata (get-char-code-property
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kana (if hankaku 'jisx0201 'katakana))))
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(if kata
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(japanese-replace-region (match-beginning 0) (point)
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kata)))))))))
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;;;###autoload
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(defun japanese-hiragana-region (from to)
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"Convert Japanese `katakana' chars in the region to `hiragana' chars."
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(interactive "r")
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(save-restriction
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(narrow-to-region from to)
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(save-excursion
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(goto-char (point-min))
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(while (re-search-forward "\\cK\\|\\ck" nil t)
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(let* ((kata (preceding-char))
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(composition (get-char-code-property kata 'kana-composition))
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slot) ;; next
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(if (and composition (setq slot (assq (following-char) composition)))
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(japanese-replace-region (match-beginning 0) (1+ (point))
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(get-char-code-property
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(cdr slot) 'hiragana))
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(let ((hira (get-char-code-property kata 'hiragana)))
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(if hira
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(japanese-replace-region (match-beginning 0) (point)
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hira)))))))))
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;;;###autoload
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(defun japanese-hankaku-region (from to &optional ascii-only)
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"Convert Japanese `zenkaku' chars in the region to `hankaku' chars.
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`Zenkaku' chars belong to `japanese-jisx0208'
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`Hankaku' chars belong to `ascii' or `japanese-jisx0201-kana'.
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Optional argument ASCII-ONLY non-nil means to convert only to ASCII char."
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(interactive "r\nP")
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(save-restriction
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(narrow-to-region from to)
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(save-excursion
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(goto-char (point-min))
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(while (re-search-forward "\\cj" nil t)
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(let* ((zenkaku (preceding-char))
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(hankaku (or (and (not ascii-only)
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(get-char-code-property zenkaku 'jisx0201))
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(get-char-code-property zenkaku 'ascii))))
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(if hankaku
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(japanese-replace-region (match-beginning 0) (match-end 0)
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hankaku)))))))
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;;;###autoload
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(defun japanese-zenkaku-region (from to &optional katakana-only)
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"Convert hankaku' chars in the region to Japanese `zenkaku' chars.
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`Zenkaku' chars belong to `japanese-jisx0208'
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`Hankaku' chars belong to `ascii' or `japanese-jisx0201-kana'.
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Optional argument KATAKANA-ONLY non-nil means to convert only KATAKANA char."
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(interactive "r\nP")
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(save-restriction
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(narrow-to-region from to)
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(save-excursion
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(goto-char (point-min))
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(while (or (and katakana-only
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(re-search-forward "\\ck" nil t))
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(and (not katakana-only)
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(re-search-forward "\\ca\\|\\ck" nil t)))
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(let* ((hankaku (preceding-char))
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(composition (get-char-code-property hankaku 'kana-composition))
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slot) ;; next
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(if (and composition (setq slot (assq (following-char) composition)))
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(japanese-replace-region (match-beginning 0) (1+ (point))
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(cdr slot))
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(let ((zenkaku (japanese-zenkaku hankaku)))
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(if zenkaku
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(japanese-replace-region (match-beginning 0) (match-end 0)
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zenkaku)))))))))
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;;;###autoload
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(defun read-hiragana-string (prompt &optional initial-input)
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"Read a Hiragana string from the minibuffer, prompting with string PROMPT.
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If non-nil, second arg INITIAL-INPUT is a string to insert before reading."
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(read-multilingual-string prompt initial-input "japanese-hiragana"))
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;;
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(provide 'japan-util)
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;;; japan-util.el ends here
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