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emacs/lisp/language/indian.el
2001-12-25 10:55:12 +00:00

85 lines
2.4 KiB
EmacsLisp

;;; indian.el --- Indian languages support -*- coding: iso-2022-7bit; -*-
;; Copyright (C) 1999, 2001 Free Software Foundation, Inc.
;; Maintainer: KAWABATA, Taichi <batta@beige.ocn.ne.jp>
;; Keywords: multilingual, i18n, Indian
;; 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:
;; This file defines in-is13194 coding system and relationship between
;; indian-glyph character-set and various CDAC fonts.
;;; Code:
(make-coding-system
'in-is13194 2 ?D
"8-bit encoding for ASCII (MSB=0) and IS13194-Devanagari (MSB=1)."
'(ascii indian-is13194 nil nil
nil ascii-eol)
'((safe-charsets ascii indian-is13194)
(post-read-conversion . in-is13194-post-read-conversion)
(pre-write-conversion . in-is13194-pre-write-conversion)))
(defvar indian-script-table
'[
devanagari
sanskrit
bengali
tamil
telugu
assamese
oriya
kannada
malayalam
gujarati
punjabi
]
"Vector of Indian script names.")
(let ((len (length indian-script-table))
(i 0))
(while (< i len)
(put (aref indian-script-table i) 'indian-glyph-code-offset (* 256 i))
(setq i (1+ i))))
(defvar indian-default-script 'devanagari
"Default script for Indian languages.
Each Indian language environment sets this value
to one of `indian-script-table' (which see).
The default value is `devanagari'.")
(define-ccl-program ccl-encode-indian-glyph-font
`(0
;; Shorten (r1 = (((((r1 - 32) * 96) + r2) - 32) % 256))
(r1 = ((((r1 * 96) + r2) - ,(+ (* 32 96) 32)) % 256))))
(setq font-ccl-encoder-alist
(cons (cons "-CDAC" 'ccl-encode-indian-glyph-font)
font-ccl-encoder-alist))
(setq font-ccl-encoder-alist
(cons '("ISO10646.*-1" . ccl-encode-unicode-font)
font-ccl-encoder-alist))
(provide 'indian)
;;; indian.el ends here