lisp/international/iso-ascii.el

   1 ;;; iso-ascii.el --- set up char tables for ISO 8859/1 on ASCII terminals
   2
   3 ;; Copyright (C) 1987, 1995, 1998, 2001-2012 Free Software Foundation, Inc.
   4
   5 ;; Author: Howard Gayle
   6 ;; Maintainer: FSF
   7 ;; Keywords: i18n
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software: you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation, either version 3 of the License, or
  14 ;; (at your option) any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 ;;; Commentary:
  25
  26 ;; Written by Howard Gayle.  See display-table.el for details.
  27
  28 ;; This code sets up to display ISO 8859/1 characters on plain
  29 ;; ASCII terminals.  The display strings for the characters are
  30 ;; more-or-less based on TeX.
  31
  32 ;;; Code:
  33
  34 (require 'disp-table)
  35
  36 (defgroup iso-ascii nil
  37   "Set up char tables for ISO 8859/1 on ASCII terminals."
  38   :prefix "iso-ascii-"
  39   :group 'i18n)
  40
  41 (defcustom iso-ascii-convenient nil
  42   "Non-nil means `iso-ascii' should aim for convenience, not precision."
  43   :type 'boolean
  44   :group 'iso-ascii)
  45
  46 (defvar iso-ascii-display-table (make-display-table)
  47   "Display table used for ISO-ASCII mode.")
  48
  49 (defvar iso-ascii-standard-display-table nil
  50   "Display table used when not in ISO-ASCII mode.")
  51 ;; Don't alter iso-ascii-standard-display-table if this file is loaded again,
  52 ;; or even by using C-M-x on any of the expressions.
  53 (unless iso-ascii-standard-display-table
  54   (setq iso-ascii-standard-display-table
  55         standard-display-table))
  56
  57 (defun iso-ascii-display (code string &optional convenient-string)
  58   (if iso-ascii-convenient
  59       (setq string (or convenient-string string))
  60     (setq string (concat "{" string "}")))
  61   ;; unibyte
  62   (aset iso-ascii-display-table code string)
  63   ;; multibyte
  64   (aset iso-ascii-display-table (make-char 'latin-iso8859-1 (- code 128))
  65         string))
  66
  67 (iso-ascii-display 160 "_" " ")   ; NBSP (no-break space)
  68 (iso-ascii-display 161 "!")   ; inverted exclamation mark
  69 (iso-ascii-display 162 "c")   ; cent sign
  70 (iso-ascii-display 163 "GBP") ; pound sign
  71 (iso-ascii-display 164 "$")   ; general currency sign
  72 (iso-ascii-display 165 "JPY") ; yen sign
  73 (iso-ascii-display 166 "|")   ; broken vertical line
  74 (iso-ascii-display 167 "S" "(S)")   ; section sign
  75 (iso-ascii-display 168 "\"")  ; diaeresis
  76 (iso-ascii-display 169 "C" "(C)")   ; copyright sign
  77 (iso-ascii-display 170 "_a")  ; ordinal indicator, feminine
  78 (iso-ascii-display 171 "<<")  ; left angle quotation mark
  79 (iso-ascii-display 172 "~")   ; not sign
  80 (iso-ascii-display 173 "-")   ; soft hyphen
  81 (iso-ascii-display 174 "R" "(R)")   ; registered sign
  82 (iso-ascii-display 175 "=")   ; macron
  83 (iso-ascii-display 176 "o")   ; degree sign
  84 (iso-ascii-display 177 "+-")  ; plus or minus sign
  85 (iso-ascii-display 178 "2")   ; superscript two
  86 (iso-ascii-display 179 "3")   ; superscript three
  87 (iso-ascii-display 180 "'")   ; acute accent
  88 (iso-ascii-display 181 "u")   ; micro sign
  89 (iso-ascii-display 182 "P" "(P)")   ; pilcrow
  90 (iso-ascii-display 183 ".")   ; middle dot
  91 (iso-ascii-display 184 ",")   ; cedilla
  92 (iso-ascii-display 185 "1")   ; superscript one
  93 (iso-ascii-display 186 "_o")  ; ordinal indicator, masculine
  94 (iso-ascii-display 187 ">>")  ; right angle quotation mark
  95 (iso-ascii-display 188 "1/4") ; fraction one-quarter
  96 (iso-ascii-display 189 "1/2") ; fraction one-half
  97 (iso-ascii-display 190 "3/4") ; fraction three-quarters
  98 (iso-ascii-display 191 "?")   ; inverted question mark
  99 (iso-ascii-display 192 "`A")  ; A with grave accent
 100 (iso-ascii-display 193 "'A")  ; A with acute accent
 101 (iso-ascii-display 194 "^A")  ; A with circumflex accent
 102 (iso-ascii-display 195 "~A")  ; A with tilde
 103 (iso-ascii-display 196 "\"A") ; A with diaeresis or umlaut mark
 104 (iso-ascii-display 197 "AA")  ; A with ring
 105 (iso-ascii-display 198 "AE")  ; AE diphthong
 106 (iso-ascii-display 199 ",C")  ; C with cedilla
 107 (iso-ascii-display 200 "`E")  ; E with grave accent
 108 (iso-ascii-display 201 "'E")  ; E with acute accent
 109 (iso-ascii-display 202 "^E")  ; E with circumflex accent
 110 (iso-ascii-display 203 "\"E") ; E with diaeresis or umlaut mark
 111 (iso-ascii-display 204 "`I")  ; I with grave accent
 112 (iso-ascii-display 205 "'I")  ; I with acute accent
 113 (iso-ascii-display 206 "^I")  ; I with circumflex accent
 114 (iso-ascii-display 207 "\"I") ; I with diaeresis or umlaut mark
 115 (iso-ascii-display 208 "-D")  ; D with stroke, Icelandic eth
 116 (iso-ascii-display 209 "~N")  ; N with tilde
 117 (iso-ascii-display 210 "`O")  ; O with grave accent
 118 (iso-ascii-display 211 "'O")  ; O with acute accent
 119 (iso-ascii-display 212 "^O")  ; O with circumflex accent
 120 (iso-ascii-display 213 "~O")  ; O with tilde
 121 (iso-ascii-display 214 "\"O") ; O with diaeresis or umlaut mark
 122 (iso-ascii-display 215 "x")   ; multiplication sign
 123 (iso-ascii-display 216 "/O")  ; O with slash
 124 (iso-ascii-display 217 "`U")  ; U with grave accent
 125 (iso-ascii-display 218 "'U")  ; U with acute accent
 126 (iso-ascii-display 219 "^U")  ; U with circumflex accent
 127 (iso-ascii-display 220 "\"U") ; U with diaeresis or umlaut mark
 128 (iso-ascii-display 221 "'Y")  ; Y with acute accent
 129 (iso-ascii-display 222 "TH")  ; capital thorn, Icelandic
 130 (iso-ascii-display 223 "ss")  ; small sharp s, German
 131 (iso-ascii-display 224 "`a")  ; a with grave accent
 132 (iso-ascii-display 225 "'a")  ; a with acute accent
 133 (iso-ascii-display 226 "^a")  ; a with circumflex accent
 134 (iso-ascii-display 227 "~a")  ; a with tilde
 135 (iso-ascii-display 228 "\"a") ; a with diaeresis or umlaut mark
 136 (iso-ascii-display 229 "aa")  ; a with ring
 137 (iso-ascii-display 230 "ae")  ; ae diphthong
 138 (iso-ascii-display 231 ",c")  ; c with cedilla
 139 (iso-ascii-display 232 "`e")  ; e with grave accent
 140 (iso-ascii-display 233 "'e")  ; e with acute accent
 141 (iso-ascii-display 234 "^e")  ; e with circumflex accent
 142 (iso-ascii-display 235 "\"e") ; e with diaeresis or umlaut mark
 143 (iso-ascii-display 236 "`i")  ; i with grave accent
 144 (iso-ascii-display 237 "'i")  ; i with acute accent
 145 (iso-ascii-display 238 "^i")  ; i with circumflex accent
 146 (iso-ascii-display 239 "\"i") ; i with diaeresis or umlaut mark
 147 (iso-ascii-display 240 "-d")  ; d with stroke, Icelandic eth
 148 (iso-ascii-display 241 "~n")  ; n with tilde
 149 (iso-ascii-display 242 "`o")  ; o with grave accent
 150 (iso-ascii-display 243 "'o")  ; o with acute accent
 151 (iso-ascii-display 244 "^o")  ; o with circumflex accent
 152 (iso-ascii-display 245 "~o")  ; o with tilde
 153 (iso-ascii-display 246 "\"o") ; o with diaeresis or umlaut mark
 154 (iso-ascii-display 247 "/")   ; division sign
 155 (iso-ascii-display 248 "/o")  ; o with slash
 156 (iso-ascii-display 249 "`u")  ; u with grave accent
 157 (iso-ascii-display 250 "'u")  ; u with acute accent
 158 (iso-ascii-display 251 "^u")  ; u with circumflex accent
 159 (iso-ascii-display 252 "\"u") ; u with diaeresis or umlaut mark
 160 (iso-ascii-display 253 "'y")  ; y with acute accent
 161 (iso-ascii-display 254 "th")  ; small thorn, Icelandic
 162 (iso-ascii-display 255 "\"y") ; small y with diaeresis or umlaut mark
 163
 164 (define-minor-mode iso-ascii-mode
 165   "Toggle ISO-ASCII mode.
 166 With a prefix argument ARG, enable the mode if ARG is positive,
 167 and disable it otherwise.  If called from Lisp, enable the mode
 168 if ARG is omitted or nil."
 169   :variable ((eq standard-display-table iso-ascii-display-table)
 170              . (lambda (v)
 171                  (setq standard-display-table
 172                        (cond
 173                         (v iso-ascii-display-table)
 174                         ((eq standard-display-table iso-ascii-display-table)
 175                          iso-ascii-standard-display-table)
 176                         (t standard-display-table))))))
 177
 178 (provide 'iso-ascii)
 179
 180 ;;; iso-ascii.el ends here