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1 ;;; emu-x20.el --- emu API implementation for XEmacs 20 with mule
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3 ;; Copyright (C) 1994,1995,1996,1997 MORIOKA Tomohiko
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5 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
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6 ;; Version: $Id: emu-x20.el,v 1.3 1997/01/30 02:22:46 steve Exp $
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7 ;; Keywords: emulation, compatibility, Mule, XEmacs
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8
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9 ;; This file is part of XEmacs.
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10
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11 ;; This program is free software; you can redistribute it and/or
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12 ;; modify it under the terms of the GNU General Public License as
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13 ;; published by the Free Software Foundation; either version 2, or (at
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14 ;; your option) any later version.
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15
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16 ;; This program is distributed in the hope that it will be useful, but
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17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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19 ;; General Public License for more details.
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20
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21 ;; You should have received a copy of the GNU General Public License
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22 ;; along with GNU XEmacs; see the file COPYING. If not, write to the
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23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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24 ;; Boston, MA 02111-1307, USA.
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25
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26 ;;; Code:
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27
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28 (require 'cyrillic)
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29 (require 'emu-xemacs)
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30
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31 (defvar xemacs-beta-version
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32 (if (string-match "(beta\\([0-9]+\\))" emacs-version)
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33 (string-to-number
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34 (substring emacs-version (match-beginning 1)(match-end 1))
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35 )))
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36
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37
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38 ;;; @ coding-system
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39 ;;;
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40
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41 (defconst *noconv* 'no-conversion)
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42 (defconst *ctext* 'ctext)
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43 (defconst *hz* 'hz)
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44 (defconst *big5* 'big5)
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45 (defconst *euc-kr* 'euc-kr)
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46 (defconst *koi8* 'koi8)
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47
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48 (defalias 'set-buffer-file-coding-system 'set-file-coding-system)
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49
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50 (defmacro as-binary-process (&rest body)
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51 `(let (selective-display ; Disable ^M to nl translation.
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52 process-input-coding-system
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53 process-output-coding-system)
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54 ,@body))
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55
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56 (defmacro as-binary-input-file (&rest body)
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57 `(let ((file-coding-system-for-read 'no-conversion))
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58 ,@body))
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59
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60
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61 ;;; @ MIME charset
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62 ;;;
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63
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64 (defvar charsets-mime-charset-alist
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65 '(((ascii) . us-ascii)
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66 ((ascii latin-iso8859-1) . iso-8859-1)
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67 ((ascii latin-iso8859-2) . iso-8859-2)
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68 ((ascii latin-iso8859-3) . iso-8859-3)
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69 ((ascii latin-iso8859-4) . iso-8859-4)
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70 ;;; ((ascii cyrillic-iso8859-5) . iso-8859-5)
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71 ((ascii cyrillic-iso8859-5) . koi8-r)
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72 ((ascii arabic-iso8859-6) . iso-8859-6)
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73 ((ascii greek-iso8859-7) . iso-8859-7)
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74 ((ascii hebrew-iso8859-8) . iso-8859-8)
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75 ((ascii latin-iso8859-9) . iso-8859-9)
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76 ((ascii latin-jisx0201
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77 japanese-jisx0208-1978 japanese-jisx0208) . iso-2022-jp)
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78 ((ascii korean-ksc5601) . euc-kr)
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79 ((ascii chinese-gb2312) . cn-gb-2312)
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80 ((ascii chinese-big5-1 chinese-big5-2) . cn-big5)
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81 ((ascii latin-iso8859-1 greek-iso8859-7
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82 latin-jisx0201 japanese-jisx0208-1978
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83 chinese-gb2312 japanese-jisx0208
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84 korean-ksc5601 japanese-jisx0212) . iso-2022-jp-2)
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85 ((ascii latin-iso8859-1 greek-iso8859-7
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86 latin-jisx0201 japanese-jisx0208-1978
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87 chinese-gb2312 japanese-jisx0208
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88 korean-ksc5601 japanese-jisx0212
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89 chinese-cns11643-1 chinese-cns11643-2) . iso-2022-int-1)
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90 ((ascii latin-iso8859-1 latin-iso8859-2
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91 cyrillic-iso8859-5 greek-iso8859-7
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92 latin-jisx0201 japanese-jisx0208-1978
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93 chinese-gb2312 japanese-jisx0208
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94 korean-ksc5601 japanese-jisx0212
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95 chinese-cns11643-1 chinese-cns11643-2
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96 chinese-cns11643-3 chinese-cns11643-4
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97 chinese-cns11643-5 chinese-cns11643-6
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98 chinese-cns11643-7) . iso-2022-int-1)
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99 ))
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100
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101 (defvar default-mime-charset 'x-ctext)
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102
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103 (defvar mime-charset-coding-system-alist
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104 '((iso-8859-1 . ctext)
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105 (x-ctext . ctext)
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106 (hz-gb-2312 . hz)
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107 (cn-gb-2312 . euc-china)
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108 (gb2312 . euc-china)
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109 (cn-big5 . big5)
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110 (koi8-r . koi8)
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111 (iso-2022-jp-2 . iso-2022-ss2-7)
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112 ))
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113
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114 (defun mime-charset-to-coding-system (charset)
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115 "Return coding-system by MIME charset. [emu-x20.el]"
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116 (if (stringp charset)
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117 (setq charset (intern (downcase charset)))
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118 )
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119 (or (cdr (assq charset mime-charset-coding-system-alist))
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120 (and (memq charset (coding-system-list)) charset)
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121 ))
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122
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123 (defun detect-mime-charset-region (start end)
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124 "Return MIME charset for region between START and END.
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125 \[emu-x20.el]"
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126 (charsets-to-mime-charset (charsets-in-region start end)))
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127
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128 (defun encode-mime-charset-region (start end charset)
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129 "Encode the text between START and END as MIME CHARSET.
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130 \[emu-x20.el]"
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131 (let ((cs (mime-charset-to-coding-system charset)))
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132 (if cs
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133 (encode-coding-region start end cs)
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134 )))
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135
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136 (defun decode-mime-charset-region (start end charset)
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137 "Decode the text between START and END as MIME CHARSET.
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138 \[emu-x20.el]"
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139 (let ((cs (mime-charset-to-coding-system charset)))
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140 (if cs
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141 (decode-coding-region start end cs)
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142 )))
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143
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144 (defun encode-mime-charset-string (string charset)
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145 "Encode the STRING as MIME CHARSET. [emu-x20.el]"
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146 (let ((cs (mime-charset-to-coding-system charset)))
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147 (if cs
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148 (encode-coding-string string cs)
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149 string)))
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150
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151 (defun decode-mime-charset-string (string charset)
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152 "Decode the STRING as MIME CHARSET. [emu-x20.el]"
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153 (let ((cs (mime-charset-to-coding-system charset)))
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154 (if cs
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155 (decode-coding-string string cs)
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156 string)))
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157
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158
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159 ;;; @ character
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160 ;;;
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161
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162 ;; (defun char-bytes (chr) 1)
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163
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164 ;; (defun char-length (character)
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165 ;; "Return number of elements a CHARACTER occupies in a string or buffer.
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166 ;; \[emu-x20.el]"
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167 ;; 1)
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168
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169 ;; (defun char-columns (character)
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170 ;; "Return number of columns a CHARACTER occupies when displayed.
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171 ;; \[emu-x20.el]"
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172 ;; (charset-columns (char-charset character))
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173 ;; )
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174
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175 ;;; @@ Mule emulating aliases
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176 ;;;
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177 ;;; You should not use them.
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178
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179 ;;(defalias 'char-width 'char-columns)
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180
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181 (defalias 'char-leading-char 'char-charset)
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182
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183 (defun char-category (character)
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184 "Return string of category mnemonics for CHAR in TABLE.
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185 CHAR can be any multilingual character
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186 TABLE defaults to the current buffer's category table.
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187 \[emu-x20.el; Mule emulating function]"
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188 (mapconcat (lambda (chr)
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189 (char-to-string (int-char chr))
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190 )
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191 (char-category-list character)
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192 ""))
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193
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194
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195 ;;; @ string
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196 ;;;
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197
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198 ;; (defun string-columns (string)
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199 ;; "Return number of columns STRING occupies when displayed.
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200 ;; \[emu-x20.el]"
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201 ;; (let ((col 0)
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202 ;; (len (length string))
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203 ;; (i 0))
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204 ;; (while (< i len)
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205 ;; (setq col (+ col (char-columns (aref string i))))
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206 ;; (setq i (1+ i))
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207 ;; )
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208 ;; col))
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209
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210 ;;(defalias 'string-width 'string-columns)
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211
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212 (defun string-to-int-list (str)
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213 (mapcar #'char-int str)
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214 )
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215
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216 ;;(defalias 'sref 'aref)
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217
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218 ;; (defun truncate-string (str width &optional start-column)
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219 ;; "Truncate STR to fit in WIDTH columns.
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220 ;; Optional non-nil arg START-COLUMN specifies the starting column.
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221 ;; \[emu-x20.el; Mule 2.3 emulating function]"
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222 ;; (or start-column
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223 ;; (setq start-column 0))
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224 ;; (substring str start-column width)
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225 ;; )
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226
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227
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228 ;;; @ end
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229 ;;;
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230
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231 (provide 'emu-x20)
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232
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233 ;;; emu-x20.el ends here
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