-;;; lao.el --- support for Lao -*- coding: iso-2022-7bit; no-byte-compile: t -*-
-
-;; Copyright (C) 2001 Free Software Foundation, Inc.
-;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
-;; National Institute of Advanced Industrial Science and Technology (AIST)
-;; Registration Number H14PRO021
-
-;; 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 3, 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., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, 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)
-
-;;; arch-tag: ba540fd9-6352-4449-a9cd-669afd21fa57
-;;; lao.el ends here
+;;; lao.el --- support for Lao -*- coding: utf-8; no-byte-compile: t -*-
+
+;; Copyright (C) 2001-2012 Free Software Foundation, Inc.
+;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+;; 2007, 2008, 2009, 2010, 2011
+;; National Institute of Advanced Industrial Science and Technology (AIST)
+;; Registration Number H14PRO021
+;; Copyright (C) 2003
+;; National Institute of Advanced Industrial Science and Technology (AIST)
+;; Registration Number H13PRO009
+
+;; 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 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;; Code:
+
+(define-coding-system 'lao
+ "8-bit encoding for ASCII (MSB=0) and LAO (MSB=1)."
+ :coding-type 'charset
+ :mnemonic ?L
+ :charset-list '(lao))
+
+(set-language-info-alist
+ "Lao" '((charset lao)
+ (coding-system lao)
+ (coding-priority lao)
+ (input-method . "lao")
+ (unibyte-display . lao)
+ (features lao-util)
+ (documentation . t)))
+
+(let ((consonant "ກ-ຮໜໝ")
+ (tone "່-໌")
+ (vowel-upper-lower "ັິ-ົໍ")
+ (semivowel-lower "ຼ")
+ (fallback-rule [nil 0 compose-gstring-for-graphic]))
+ ;; target characters regexp
+ ;; ----------------- ------
+ (dolist (l `((,vowel-upper-lower . "[c].[t]?")
+ (,tone . "[c].")
+ (,semivowel-lower . "[c].[v][t]?")
+ (,semivowel-lower . "[c].[t]")))
+ (let* ((chars (car l))
+ (len (length chars))
+ ;; Replace `c', `t', `v' to consonant, tone, and vowel.
+ (regexp (mapconcat #'(lambda (c)
+ (cond ((= c ?c) consonant)
+ ((= c ?t) tone)
+ ((= c ?v) vowel-upper-lower)
+ (t (string c))))
+ (cdr l) ""))
+ ;; Element of composition-function-table.
+ (elt (list (vector regexp 1 'lao-composition-function)
+ fallback-rule))
+ ch)
+ (dotimes (i len)
+ (setq ch (aref chars i))
+ (if (and (> i 1) (= (aref chars (1- i)) ?-))
+ ;; End of character range.
+ (set-char-table-range composition-function-table
+ (cons (aref chars (- i 2)) ch) elt)
+ (if (or (= (1+ i) len)
+ (and (/= ch ?-) (/= (aref chars (1+ i)) ?-)))
+ ;; A character not forming a range.
+ (set-char-table-range composition-function-table ch elt)))))))
+
+(provide 'lao)
+
+;;; lao.el ends here
HCoop / bpt / emacs.git / blobdiff