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119 lines
3.9 KiB
EmacsLisp
119 lines
3.9 KiB
EmacsLisp
;;; english.el --- English support
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;; Copyright (C) 1997 Electrotechnical Laboratory, JAPAN.
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;; Licensed to the Free Software Foundation.
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;; Keywords: multibyte character, character set, syntax, category
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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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;; We need nothing special to support English on Emacs. Selecting
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;; English as a language environment is one of the ways to reset
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;; various multilingual environment to the original settting.
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;;; Code
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(defun setup-english-environment ()
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"Reset multilingual environment of Emacs to the default status.
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The default status is as follows.
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The default value of enable-multibyte-characters is t.
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The default value of buffer-file-coding-system is nil.
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The coding system for terminal output is nil.
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The coding system for keyboard input is nil.
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The order of priorities of coding categories and the coding system
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bound to each category are as follows
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coding category coding system
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--------------------------------------------------
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coding-category-iso-7-tight iso-2022-jp
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coding-category-iso-7 iso-2022-7bit
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coding-category-iso-8-1 iso-latin-1
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coding-category-iso-8-2 iso-latin-1
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coding-category-iso-7-else iso-2022-7bit-lock
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coding-category-iso-8-else iso-2022-8bit-ss2
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coding-category-emacs-mule emacs-mule
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coding-category-raw-text raw-text
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coding-category-sjis japanese-shift-jis
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coding-category-big5 chinese-big5
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coding-category-binarry no-conversion
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"
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(interactive)
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(setq-default enable-multibyte-characters t)
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(setq coding-category-iso-7-tight 'iso-2022-jp
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coding-category-iso-7 'iso-2022-7bit
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coding-category-iso-8-1 'iso-latin-1
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coding-category-iso-8-2 'iso-latin-1
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coding-category-iso-7-else 'iso-2022-7bit-lock
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coding-category-iso-8-else 'iso-2022-8bit-ss2
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coding-category-emacs-mule 'emacs-mule
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coding-category-raw-text 'raw-text
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coding-category-sjis 'japanese-shift-jis
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coding-category-big5 'chinese-big5
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coding-category-binary 'no-conversion)
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(set-coding-priority
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'(coding-category-iso-7-tight
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coding-category-iso-7
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coding-category-iso-8-2
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coding-category-iso-8-1
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coding-category-iso-7-else
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coding-category-iso-8-else
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coding-category-emacs-mule
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coding-category-raw-text
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coding-category-sjis
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coding-category-big5
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coding-category-binary))
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(set-default-coding-systems nil)
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;; Don't alter the terminal and keyboard coding systems here.
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;; The terminal still supports the same coding system
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;; that it supported a minute ago.
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;;; (set-terminal-coding-system-internal nil)
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;;; (set-keyboard-coding-system-internal nil)
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(setq nonascii-insert-offset 0))
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(set-language-info-alist
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"English" '((setup-function . setup-english-environment)
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(tutorial . "TUTORIAL")
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(charset ascii)
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(coding-priority iso-2022-7bit
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iso-latin-1
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iso-2022-7bit-lock
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iso-2022-8bit-ss2
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emacs-mule
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raw-text
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japanese-shift-jis
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chinese-big5
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no-conversion)
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(sample-text . "Hello!, Hi!, How are you?")
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(documentation . "\
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Nothing special is needed to handle English.")
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))
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;; Make "ASCII" an alias of "English" language environment.
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(set-language-info-alist
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"ASCII" (cdr (assoc "English" language-info-alist)))
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;;; english.el ends here
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