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[bpt/emacs.git] / lisp / language / lao.el

;;; lao.el --- support for Lao -*- coding: iso-2022-7bit; no-byte-compile: t -*-

;; Copyright (C) 1997 Electrotechnical Laboratory, JAPAN.
;; Licensed to the Free Software Foundation.
;; Copyright (C) 2001 Free Software Foundation, Inc.

;; Keywords: multilingual, Lao

;; This file is part of GNU Emacs.

;; GNU Emacs 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.

;; GNU Emacs 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 Emacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;;; Commentary:

;;; Code:

(make-coding-system
 'lao 2 ?L
 "8-bit encoding for ASCII (MSB=0) and LAO (MSB=1)."
 '(ascii lao nil nil
   nil nil nil nil nil nil nil nil nil nil nil t)
 '((safe-charsets ascii lao)
   (post-read-conversion . lao-post-read-conversion)))

(set-language-info-alist
 "Lao" '((charset lao)
	 (coding-system lao)
	 (coding-priority lao)
	 (input-method . "lao")
	 (nonascii-translation . lao)
	 (unibyte-display . lao)
	 (features lao-util)
	 (documentation . t)))

(aset use-default-ascent ?\e(1;\e(B t)
(aset use-default-ascent ?\e$,1D;\e(B t)
(aset use-default-ascent ?\e(1=\e(B t)
(aset use-default-ascent ?\e$,1D=\e(B t)
(aset use-default-ascent ?\e(1?\e(B t)
(aset use-default-ascent ?\e$,1D?\e(B t)
(aset use-default-ascent ?\e(1B\e(B t)
(aset use-default-ascent ?\e$,1DB\e(B t)
(aset ignore-relative-composition ?\e(1\\e(B t)
(aset ignore-relative-composition ?\e$,1D\\e(B t)

;; Register a function to compose Lao characters.
(let ((patterns '(("\\c0\\c9?\\(\\(\\c2\\|\\c3\\)\\c4?\\|\\c4\\)?"
	 . lao-composition-function))))
  (aset composition-function-table (make-char 'lao) patterns)
  (dotimes (i (1+ (- #xeff #xe80)))
    (aset composition-function-table (decode-char 'ucs (+ i #xe80)) patterns)))

(provide 'lao)

;;; lao.el ends here