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92 lines
2.7 KiB
EmacsLisp
92 lines
2.7 KiB
EmacsLisp
;;; indian.el --- Indian languages support -*- coding: iso-2022-7bit; -*-
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;; Copyright (C) 1999, 2001 Free Software Foundation, Inc.
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;; Maintainer: KAWABATA, Taichi <batta@beige.ocn.ne.jp>
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;; Keywords: multilingual, i18n, Indian
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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 2, or (at your option)
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;; 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; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;; This file defines in-is13194 coding system and relationship between
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;; indian-glyph character-set and various CDAC fonts.
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;;; Code:
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(make-coding-system
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'in-is13194 2 ?D
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"8-bit encoding for ASCII (MSB=0) and IS13194-Devanagari (MSB=1)."
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'(ascii indian-is13194 nil nil
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nil ascii-eol)
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`((safe-chars . ,(let ((table (make-char-table 'safe-chars nil)))
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(set-char-table-range table 'indian-is13194 t)
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(dotimes (i 127)
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(aset table i t)
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(aset table (decode-char 'ucs (+ #x900 i)) t))
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table))
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(post-read-conversion . in-is13194-post-read-conversion)
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(pre-write-conversion . in-is13194-pre-write-conversion)))
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(define-coding-system-alias 'devanagari 'in-is13194)
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(defvar indian-script-table
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'[
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devanagari
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sanskrit
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bengali
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tamil
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telugu
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assamese
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oriya
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kannada
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malayalam
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gujarati
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punjabi
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]
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"Vector of Indian script names.")
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(let ((len (length indian-script-table))
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(i 0))
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(while (< i len)
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(put (aref indian-script-table i) 'indian-glyph-code-offset (* 256 i))
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(setq i (1+ i))))
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(defvar indian-default-script 'devanagari
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"Default script for Indian languages.
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Each Indian language environment sets this value
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to one of `indian-script-table' (which see).
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The default value is `devanagari'.")
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(define-ccl-program ccl-encode-indian-glyph-font
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`(0
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;; Shorten (r1 = (((((r1 - 32) * 96) + r2) - 32) % 256))
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(r1 = ((((r1 * 96) + r2) - ,(+ (* 32 96) 32)) % 256))))
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(setq font-ccl-encoder-alist
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(cons (cons "-CDAC" 'ccl-encode-indian-glyph-font)
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font-ccl-encoder-alist))
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(setq font-ccl-encoder-alist
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(cons '("ISO10646.*-1" . ccl-encode-unicode-font)
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font-ccl-encoder-alist))
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(provide 'indian)
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;;; indian.el ends here
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