;;; mcs-xm.el --- MIME charset implementation for XEmacs-mule ;; Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. ;; Author: MORIOKA Tomohiko ;; Keywords: emulation, compatibility, Mule ;; This file is part of APEL (A Portable Emacs Library). ;; This program 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. ;; This program 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 module requires Emacs 20.0.93, XEmacs 20.3-b5 (with mule) ;; or later. ;;; Code: (require 'mcs-20) (defun encode-mime-charset-region (start end charset &optional lbt) "Encode the text between START and END as MIME CHARSET." (let ((cs (mime-charset-to-coding-system charset lbt))) (if cs (encode-coding-region start end cs) ))) (defcustom mime-charset-decoder-alist (let ((alist '((hz-gb-2312 . decode-mime-charset-region-for-hz) (t . decode-mime-charset-region-default)))) (if (featurep 'utf-2000) alist (list* '(iso-2022-jp . decode-mime-charset-region-with-iso646-unification) '(iso-2022-jp-2 . decode-mime-charset-region-with-iso646-unification) alist))) "Alist MIME-charset vs. decoder function." :group 'i18n :type '(repeat (cons mime-charset function))) (defsubst decode-mime-charset-region-default (start end charset lbt) (let ((cs (mime-charset-to-coding-system charset lbt))) (if cs (decode-coding-region start end cs) ))) (unless (featurep 'utf-2000) (require 'mcs-xmu)) (defun decode-mime-charset-region-for-hz (start end charset lbt) (if lbt (save-restriction (narrow-to-region start end) (decode-coding-region (point-min)(point-max) (mime-charset-to-coding-system 'raw-text lbt)) (decode-hz-region (point-min)(point-max))) (decode-hz-region start end))) (defun decode-mime-charset-region (start end charset &optional lbt) "Decode the text between START and END as MIME CHARSET." (if (stringp charset) (setq charset (intern (downcase charset))) ) (let ((func (cdr (or (assq charset mime-charset-decoder-alist) (assq t mime-charset-decoder-alist))))) (funcall func start end charset lbt))) (defsubst encode-mime-charset-string (string charset &optional lbt) "Encode the STRING as MIME CHARSET." (let ((cs (mime-charset-to-coding-system charset lbt))) (if cs (encode-coding-string string cs) string))) ;; (defsubst decode-mime-charset-string (string charset) ;; "Decode the STRING as MIME CHARSET." ;; (let ((cs (mime-charset-to-coding-system charset))) ;; (if cs ;; (decode-coding-string string cs) ;; string))) (defun decode-mime-charset-string (string charset &optional lbt) "Decode the STRING as MIME CHARSET." (with-temp-buffer (insert string) (decode-mime-charset-region (point-min)(point-max) charset lbt) (buffer-string))) (defvar charsets-mime-charset-alist `(((ascii) . us-ascii) ((ascii latin-iso8859-1) . iso-8859-1) ((ascii latin-iso8859-2) . iso-8859-2) ((ascii latin-iso8859-3) . iso-8859-3) ((ascii latin-iso8859-4) . iso-8859-4) ((ascii cyrillic-iso8859-5) . iso-8859-5) ;;; ((ascii cyrillic-iso8859-5) . koi8-r) ((ascii arabic-iso8859-6) . iso-8859-6) ((ascii greek-iso8859-7) . iso-8859-7) ((ascii hebrew-iso8859-8) . iso-8859-8) ((ascii latin-iso8859-9) . iso-8859-9) ,(if (featurep 'utf-2000) '((ascii latin-jisx0201 japanese-jisx0208-1978 japanese-jisx0208 japanese-jisx0208-1990) . iso-2022-jp) '((ascii latin-jisx0201 japanese-jisx0208-1978 japanese-jisx0208) . iso-2022-jp)) ,(if (featurep 'utf-2000) '((ascii latin-jisx0201 japanese-jisx0208-1978 japanese-jisx0208 japanese-jisx0208-1990 japanese-jisx0213-1 japanese-jisx0213-2) . iso-2022-jp-3) '((ascii latin-jisx0201 japanese-jisx0208-1978 japanese-jisx0208 japanese-jisx0213-1 japanese-jisx0213-2) . iso-2022-jp-3)) ,(if (featurep 'utf-2000) '((ascii latin-jisx0201 katakana-jisx0201 japanese-jisx0208-1990) . shift_jis) '((ascii latin-jisx0201 katakana-jisx0201 japanese-jisx0208) . shift_jis)) ((ascii korean-ksc5601) . euc-kr) ((ascii chinese-gb2312) . gb2312) ((ascii chinese-big5-1 chinese-big5-2) . big5) ((ascii thai-xtis) . tis-620) ,(if (featurep 'utf-2000) '((ascii latin-jisx0201 latin-iso8859-1 greek-iso8859-7 japanese-jisx0208-1978 japanese-jisx0208 japanese-jisx0208-1990 japanese-jisx0212 chinese-gb2312 korean-ksc5601) . iso-2022-jp-2) '((ascii latin-jisx0201 latin-iso8859-1 greek-iso8859-7 japanese-jisx0208-1978 japanese-jisx0208 japanese-jisx0212 chinese-gb2312 korean-ksc5601) . iso-2022-jp-2)) ;; ((ascii latin-iso8859-1 greek-iso8859-7 ;; latin-jisx0201 japanese-jisx0208-1978 ;; chinese-gb2312 japanese-jisx0208 ;; korean-ksc5601 japanese-jisx0212 ;; chinese-cns11643-1 chinese-cns11643-2) . iso-2022-int-1) )) (defun coding-system-to-mime-charset (coding-system) "Convert CODING-SYSTEM to a MIME-charset. Return nil if corresponding MIME-charset is not found." (setq coding-system (coding-system-name (coding-system-base coding-system))) (or (car (rassq coding-system mime-charset-coding-system-alist)) coding-system)) (defun mime-charset-list () "Return a list of all existing MIME-charset." (let ((dest (mapcar (function car) mime-charset-coding-system-alist)) (rest (coding-system-list)) cs) (while rest (setq cs (coding-system-name (coding-system-base (car rest)))) (or (rassq cs mime-charset-coding-system-alist) (memq cs dest) (setq dest (cons cs dest))) (setq rest (cdr rest))) dest)) ;;; @ end ;;; (require 'product) (product-provide (provide 'mcs-xm) (require 'apel-ver)) ;;; mcs-xm.el ends here