Mercurial > hg > xemacs-beta
annotate lisp/code-init.el @ 5265:5663ae9a8989
Warn at compile time, error at runtime, with (quote X Y), (function X Y).
lisp/ChangeLog addition:
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* bytecomp.el (byte-compile-function-form, byte-compile-quote)
(byte-compile-quote-form):
Warn at compile time, and error at runtime, if a (quote ...) or a
(function ...) form attempts to quote more than one object.
src/ChangeLog addition:
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* eval.c (Ffunction, Fquote):
Add argument information in the arguments: () format for these two
special operators.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Thu, 16 Sep 2010 14:10:44 +0100 |
| parents | d2ec55325515 |
| children | 308d34e9f07d |
| rev | line source |
|---|---|
| 771 | 1 ;;; code-init.el --- Handle coding system default values |
| 2 | |
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3 ;; Copyright (C) 2001, 2002, 2003, 2010 Ben Wing. |
| 771 | 4 |
| 5 ;; This file is part of XEmacs. | |
| 6 | |
| 7 ;; XEmacs is free software; you can redistribute it and/or modify it | |
| 8 ;; under the terms of the GNU General Public License as published by | |
| 9 ;; the Free Software Foundation; either version 2, or (at your option) | |
| 10 ;; any later version. | |
| 11 | |
| 12 ;; XEmacs is distributed in the hope that it will be useful, but | |
| 13 ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 ;; General Public License for more details. | |
| 16 | |
| 17 ;; You should have received a copy of the GNU General Public License | |
| 18 ;; along with XEmacs; see the file COPYING. If not, write to the | |
| 19 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 20 ;; Boston, MA 02111-1307, USA. | |
| 21 | |
| 22 ;;; Commentary: | |
| 23 | |
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24 ;; Author: Ben wing, 2001? |
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25 |
| 771 | 26 ;; Placed in a separate file so it can be loaded after the various |
| 27 ;; coding systems have been created, because we'll be using them at | |
| 28 ;; load time. | |
| 29 | |
| 2297 | 30 ;; #### Issues (this discussion probably belongs elsewhere) |
| 31 ;; 1. "Big" characters are unrepresentable. Should give error, warning, | |
| 32 ;; not just substitute "~". | |
| 33 ;; 2. 21.4 compatibility? | |
| 34 ;; 3. make-char: non-mule barfs on non-iso8859-1. | |
| 35 | |
| 771 | 36 ;;; Code: |
| 37 | |
| 38 (defcustom eol-detection-enabled-p (or (featurep 'mule) | |
| 39 (memq system-type '(windows-nt | |
| 40 cygwin32)) | |
| 41 (featurep 'unix-default-eol-detection)) | |
| 42 "True if XEmacs automatically detects the EOL type when reading files. | |
| 43 Normally, this is always the case on Windows or when international (Mule) | |
| 44 support is compiled into this XEmacs. Otherwise, it is currently off by | |
| 45 default, but this may change. Don't set this; nothing will happen. Instead, | |
| 46 use the Options menu or `set-eol-detection'." | |
| 47 :group 'encoding | |
| 48 :type 'boolean | |
| 49 ;; upon initialization, we don't want the whole business of | |
| 50 ;; set-eol-detection to be called. We will init everything appropriately | |
| 51 ;; later in the same file, when reset-language-environment is called. | |
| 52 :initialize #'(lambda (var val) | |
| 1698 | 53 (setq eol-detection-enabled-p (eval val))) |
| 771 | 54 :set #'(lambda (var val) |
| 55 (set-eol-detection val) | |
| 56 (setq eol-detection-enabled-p val))) | |
| 57 | |
| 58 (defun set-eol-detection (flag) | |
| 59 "Enable (if FLAG is non-nil) or disable automatic EOL detection of files. | |
| 60 EOL detection is enabled by default on Windows or when international (Mule) | |
| 61 support is compiled into this XEmacs. Otherwise, it is currently off by | |
| 62 default, but this may change. NOTE: You *REALLY* should not turn off EOL | |
| 63 detection on Windows! Your files will have lots of annoying ^M's in them | |
| 64 if you do this." | |
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65 (dolist (x '(bfcs-for-read |
| 771 | 66 keyboard |
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67 process-read |
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68 no-conv-cs)) |
| 771 | 69 (set-coding-system-variable |
| 70 x (coding-system-change-eol-conversion (get-coding-system-variable x) | |
| 2508 | 71 (if flag nil 'lf))))) |
| 771 | 72 |
| 73 (defun coding-system-current-system-configuration () | |
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74 "Function to decide which default coding system configuration applies." |
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75 (cond ((featurep 'cygwin-use-utf-8) 'cygwin-utf-8) |
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76 ((memq system-type '(windows-nt cygwin32)) |
| 771 | 77 (if (featurep 'mule) 'windows-mule 'windows-no-mule)) |
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78 ((featurep 'mule) 'mule) |
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79 (eol-detection-enabled-p 'no-mule-eol-detection) |
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80 (t 'no-mule-no-eol-detection))) |
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81 |
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82 (defvar coding-system-default-configuration-table (make-hash-table)) |
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83 |
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84 (defun define-coding-system-default-configuration (name doc props) |
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85 (puthash name (nconc `(doc ,doc) props) |
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86 coding-system-default-configuration-table)) |
| 771 | 87 |
| 1318 | 88 ;; NOTE NOTE NOTE: These values may get overridden when the language |
| 89 ;; environment is initialized (set-language-environment-coding-systems). | |
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90 (define-coding-system-default-configuration |
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91 'no-mule-no-eol-detection |
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92 "No Mule support, EOL detection not enabled." |
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93 '(bfcs-for-read binary |
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94 default-bfcs binary |
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95 process-read binary |
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96 process-write binary |
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97 keyboard binary |
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98 native binary |
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99 no-conv-cs binary |
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100 terminal binary)) |
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101 |
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102 (define-coding-system-default-configuration |
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103 'no-mule-eol-detection |
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104 "No Mule support, EOL detection enabled." |
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105 '(bfcs-for-read raw-text |
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106 default-bfcs binary |
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107 process-read raw-text |
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108 process-write binary |
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109 keyboard raw-text |
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110 native binary |
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111 no-conv-cs raw-text |
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112 terminal binary)) |
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113 |
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114 (define-coding-system-default-configuration |
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115 'mule |
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116 "Mule support enabled." |
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117 '(bfcs-for-read undecided |
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118 default-bfcs iso-2022-8 |
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119 process-read undecided |
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120 process-write binary |
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121 keyboard undecided-unix |
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122 native binary |
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123 no-conv-cs raw-text |
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124 terminal binary)) |
| 771 | 125 |
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126 (define-coding-system-default-configuration |
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127 'windows-no-mule |
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128 "Microsoft Windows, no Mule support." |
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129 '(bfcs-for-read raw-text |
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130 default-bfcs raw-text-dos |
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131 process-read raw-text |
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132 process-write raw-text |
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133 keyboard raw-text |
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134 native raw-text-dos |
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135 no-conv-cs raw-text |
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136 terminal binary)) |
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137 |
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138 (define-coding-system-default-configuration |
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139 'windows-mule |
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140 "Microsoft Windows, Mule support enabled." |
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141 '(bfcs-for-read undecided |
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142 default-bfcs mswindows-multibyte-dos |
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143 process-read undecided |
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144 process-write mswindows-multibyte-system-default |
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145 keyboard undecided-unix |
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146 native mswindows-multibyte-system-default-dos |
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147 no-conv-cs mswindows-multibyte |
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148 terminal mswindows-multibyte-unix)) |
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149 |
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150 (define-coding-system-default-configuration |
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151 'cygwin-utf-8 |
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152 "Mule support enabled." |
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153 '(bfcs-for-read undecided |
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154 default-bfcs utf-8 |
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155 process-read utf-8 |
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156 process-write utf-8 |
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157 keyboard utf-8 |
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158 native utf-8 |
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159 no-conv-cs utf-8 |
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160 terminal utf-8)) |
| 771 | 161 |
| 162 (defvar coding-system-default-variable-list | |
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163 '(bfcs-for-read |
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164 default-bfcs |
| 771 | 165 native |
| 166 keyboard | |
| 167 terminal | |
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168 process-read |
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169 process-write |
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170 no-conv-cs)) |
| 771 | 171 |
| 172 (defun get-coding-system-variable (var) | |
| 173 "Return the value of a basic coding system variable. | |
| 174 This is intended as a uniform interface onto the coding system settings that | |
| 175 control how encoding detection and conversion works. See | |
| 176 `coding-system-variable-default-value' for a list of the possible values of | |
| 177 VAR." | |
| 178 (case var | |
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179 (bfcs-for-read buffer-file-coding-system-for-read) |
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180 (default-bfcs |
| 771 | 181 (default-value 'buffer-file-coding-system)) |
| 182 (native (coding-system-aliasee 'native)) | |
| 183 (keyboard (coding-system-aliasee 'keyboard)) | |
| 184 (terminal (coding-system-aliasee 'terminal)) | |
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185 (process-read (car default-process-coding-system)) |
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186 (process-write (cdr default-process-coding-system)) |
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187 (no-conv-cs |
| 2508 | 188 (coding-category-system 'no-conversion)) |
| 771 | 189 (t (error 'invalid-constant "Invalid coding system variable" var)))) |
| 190 | |
| 191 (defun set-coding-system-variable (var value) | |
| 192 "Set a basic coding system variable to VALUE. | |
| 193 This is intended as a uniform interface onto the coding system settings that | |
| 194 control how encoding detection and conversion works. See | |
| 195 `coding-system-variable-default-value' for a list of the possible values of | |
| 196 VAR." | |
| 197 (case var | |
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198 (bfcs-for-read |
| 771 | 199 (set-buffer-file-coding-system-for-read value)) |
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200 (default-bfcs |
| 771 | 201 (set-default-buffer-file-coding-system value)) |
| 202 (native (define-coding-system-alias 'native value)) | |
| 203 (keyboard (set-keyboard-coding-system value)) | |
| 204 (terminal (set-terminal-coding-system value)) | |
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205 (process-read |
| 771 | 206 (setq default-process-coding-system |
| 207 (cons value (cdr default-process-coding-system)))) | |
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208 (process-write |
| 771 | 209 (setq default-process-coding-system |
| 210 (cons (car default-process-coding-system) value))) | |
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211 (no-conv-cs |
| 2508 | 212 (set-coding-category-system 'no-conversion value)) |
| 771 | 213 (t (error 'invalid-constant "Invalid coding system variable" var)))) |
| 214 | |
| 215 (defun coding-system-variable-default-value (var &optional config) | |
| 216 "Return the appropriate default value for a coding system variable. | |
| 217 | |
| 218 VAR specifies the variable, and CONFIG the configuration, defaulting | |
| 219 to the current system configuration (as returned by | |
| 220 `coding-system-current-system-configuration'). | |
| 221 | |
| 222 The table of default values looks like this: (see below for abbreviations) | |
| 223 | |
| 224 | |
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225 NoMule NoMuleEOL Mule MSW MSWMule CygUTF |
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226 ------------------------------------------------------------------------------ |
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227 bfcs-for-read binary raw-text undecided raw-text undecided undecided |
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228 default-bfcs binary binary iso-2022-8 raw-text-dos MSW-MB-dos utf-8 |
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229 native binary binary binary raw-text-dos MSW-MB-SD-dos utf-8 |
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230 keyboard binary raw-text undecided- raw-text undecided- utf-8 |
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231 unix unix |
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232 terminal binary binary binary binary MSW-MB-unix utf-8 |
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233 process-read binary raw-text undecided raw-text undecided utf-8 |
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234 process-write binary binary binary raw-text MSW-MB-SD utf-8 |
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235 no-conv-cs binary raw-text raw-text raw-text MSW-MB utf-8 |
| 771 | 236 |
| 237 | |
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238 VAR can be one of: |
| 771 | 239 |
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240 `bfcs-for-read' |
| 771 | 241 |
| 242 Lisp variable of the same name; the default coding system used when | |
| 243 reading in a file, in the absence of more specific settings. (See | |
| 244 `insert-file-contents' for a description of exactly how a file's | |
| 245 coding system is determined when it's read in.) | |
| 246 | |
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247 `default-bfcs' |
| 771 | 248 |
| 249 Default value of `buffer-file-coding-system', the buffer-local | |
| 250 variable specifying a file's coding system to be used when it is | |
| 251 written out. Set using `set-default-buffer-file-coding-system' (or | |
| 252 the primitive `setq-default'). When a file is read in, | |
| 253 `buffer-file-coding-system' for that file is set from the coding | |
| 254 system used to read the file in; the default value applies to newly | |
| 255 created files. | |
| 256 | |
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257 `native' |
| 771 | 258 |
| 259 The coding system named `native'. Changed using | |
| 260 `define-coding-system-alias'. Used internally when passing | |
| 1318 | 261 text to or from system API's, unless the particular |
| 771 | 262 API specifies another coding system. |
| 263 | |
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264 `keyboard' |
| 771 | 265 |
| 266 #### fill in | |
| 267 | |
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268 `terminal' |
| 771 | 269 |
| 270 #### fill in | |
| 271 | |
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272 `process-read' |
| 771 | 273 |
| 274 #### fill in | |
| 275 | |
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276 `process-write' |
| 771 | 277 |
| 278 #### fill in | |
| 279 | |
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280 `no-conv-cs' |
| 771 | 281 |
| 282 Coding system used when category `no-conversion' is detected. | |
| 283 | |
| 284 | |
| 285 CONFIG is one of: (abbreviations in parens) | |
| 286 | |
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287 `no-mule-no-eol-detection' (NoMule) |
| 771 | 288 |
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289 Non-Windows, no Mule support, no automatic EOL detection. (Controlled by |
| 771 | 290 `eol-detection-enabled-p', which is set by the command-line flag |
| 291 -enable-eol-detection or the configure flag --with-default-eol-detection.) | |
| 292 | |
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293 `unix-no-mule-eol-detection' (NoMuleEOL) |
| 771 | 294 |
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295 Non-Windows, no Mule support, automatic EOL detection. |
| 771 | 296 |
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297 `unix-mule' (Mule) |
| 771 | 298 |
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299 Non-Windows, Mule support. |
| 771 | 300 |
| 301 `windows-no-mule' (MSW) | |
| 302 | |
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303 MS Windows or old Cygwin, no Mule support. |
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304 |
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305 `windows-mule' (MSWMule) |
| 771 | 306 |
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307 MS Windows or old Cygwin, Mule support. |
| 771 | 308 |
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309 `cygwin-utf-8' (CygUTF) |
| 771 | 310 |
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311 Cygwin 1.7 or later, which uses UTF-8 consistently. |
| 771 | 312 |
| 313 The following coding system abbreviations are also used in the table: | |
| 314 | |
| 315 MSW-MB = mswindows-multibyte | |
| 316 MSW-MB = mswindows-multibyte-system-default | |
| 317 " | |
| 318 (setq config (or config (coding-system-current-system-configuration))) | |
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319 (or (memq var coding-system-default-variable-list) |
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320 (error 'invalid-constant "Invalid coding system variable" var)) |
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321 (let ((props (gethash config coding-system-default-configuration-table))) |
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322 (or props (error 'invalid-constant "Invalid coding system configuration" |
| 771 | 323 config)) |
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324 (getf props var))) |
| 771 | 325 |
| 326 (defun reset-coding-system-defaults (&optional config) | |
| 327 "Reset all basic coding system variables are set to their default values. | |
| 328 See `coding-system-variable-default-value'." | |
| 329 (setq config (or config (coding-system-current-system-configuration))) | |
| 330 (mapcar #'(lambda (var) | |
| 331 (set-coding-system-variable | |
| 332 var (coding-system-variable-default-value var config))) | |
| 333 coding-system-default-variable-list)) | |
| 334 | |
| 335 (defun reset-coding-categories-to-default () | |
| 336 "Reset all coding categories (used for automatic detection) to their defaults. | |
| 337 | |
| 338 The order of priorities of coding categories and the coding system | |
| 339 bound to each category are as follows: | |
| 340 | |
| 341 coding category coding system | |
| 342 -------------------------------------------------- | |
| 343 utf-16-little-endian-bom utf-16-little-endian | |
| 344 utf-16-bom utf-16-bom | |
| 985 | 345 utf-8-bom utf-8-bom |
| 771 | 346 iso-7 iso-2022-7bit |
| 347 no-conversion raw-text | |
| 348 utf-8 utf-8 | |
| 349 iso-8-1 iso-8859-1 | |
| 350 iso-8-2 ctext (iso-8859-1 alias) | |
| 351 iso-8-designate ctext (iso-8859-1 alias) | |
| 352 iso-lock-shift iso-2022-lock | |
| 353 shift-jis shift-jis | |
| 354 big5 big5 | |
| 355 utf-16-little-endian utf-16-little-endian | |
| 356 utf-16 utf-16 | |
| 357 ucs-4 ucs-4 | |
| 358 " | |
| 359 ;; #### What a mess! This needs to be overhauled. | |
| 360 | |
| 361 ;; The old table (from FSF synch?) was not what we use (cf mule-coding.el), | |
| 362 ;; and as documented iso-8-designate is inconsistent with iso-2022-8bit-ss2. | |
| 363 ;; The order of priorities of coding categories and the coding system | |
| 364 ;; bound to each category are as follows: | |
| 365 ;; | |
| 366 ;; coding category coding system | |
| 367 ;; -------------------------------------------------- | |
| 368 ;; iso-8-2 iso-8859-1 | |
| 369 ;; iso-8-1 iso-8859-1 | |
| 370 ;; iso-7 iso-2022-7bit | |
| 371 ;; iso-lock-shift iso-2022-lock | |
| 372 ;; iso-8-designate iso-2022-8bit-ss2 | |
| 373 ;; no-conversion raw-text | |
| 374 ;; shift-jis shift_jis | |
| 375 ;; big5 big5 | |
| 376 ;; ucs-4 ---- | |
| 377 ;; utf-8 ---- | |
| 378 (when (featurep 'mule) | |
| 379 (set-coding-category-system 'iso-7 'iso-2022-7) | |
| 380 (set-coding-category-system 'iso-8-1 'iso-8859-1) | |
| 381 (set-coding-category-system 'iso-8-2 'ctext) | |
| 382 (set-coding-category-system 'iso-lock-shift 'iso-2022-lock) | |
| 383 (set-coding-category-system 'iso-8-designate 'ctext) | |
| 384 (if (find-coding-system 'shift-jis) | |
| 385 (set-coding-category-system 'shift-jis 'shift-jis)) | |
| 386 (if (find-coding-system 'big5) | |
| 387 (set-coding-category-system 'big5 'big5)) | |
| 388 ) | |
| 389 (set-coding-category-system | |
| 390 'no-conversion | |
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391 (coding-system-variable-default-value 'no-conv-cs)) |
| 771 | 392 (set-coding-category-system 'ucs-4 'ucs-4) |
| 393 (set-coding-category-system 'utf-8 'utf-8) | |
| 985 | 394 (set-coding-category-system 'utf-8-bom 'utf-8-bom) |
| 771 | 395 (set-coding-category-system 'utf-16-little-endian 'utf-16-little-endian) |
| 396 (set-coding-category-system 'utf-16 'utf-16) | |
| 397 (set-coding-category-system 'utf-16-little-endian-bom | |
| 398 'utf-16-little-endian-bom) | |
| 399 (set-coding-category-system 'utf-16-bom 'utf-16-bom) | |
| 400 (set-coding-priority-list | |
| 401 (if (featurep 'mule) | |
| 402 '(utf-16-little-endian-bom | |
| 403 utf-16-bom | |
| 985 | 404 utf-8-bom |
| 771 | 405 iso-7 |
| 406 no-conversion | |
| 407 utf-8 | |
| 408 iso-8-1 | |
| 409 iso-8-2 | |
| 410 iso-8-designate | |
| 411 iso-lock-shift | |
| 412 shift-jis | |
| 413 big5 | |
| 414 utf-16-little-endian | |
| 415 utf-16 | |
| 416 ucs-4) | |
| 417 '(utf-16-little-endian-bom | |
| 418 utf-16-bom | |
| 985 | 419 utf-8-bom |
| 771 | 420 no-conversion |
| 421 utf-8 | |
| 422 utf-16-little-endian | |
| 423 utf-16 | |
| 424 ucs-4)))) | |
| 425 | |
| 426 (defun reset-language-environment () | |
| 427 "Reset coding system environment of XEmacs to the default status. | |
| 428 All basic coding system variables are set to their default values, as | |
| 429 are the coding categories used for automatic detection and their | |
| 430 priority. | |
| 431 | |
| 432 BE VERY CERTAIN YOU WANT TO DO THIS BEFORE DOING IT! | |
| 433 | |
| 434 For more information, see `reset-coding-system-defaults' and | |
| 435 `reset-coding-categories-to-default'." | |
| 436 (reset-coding-system-defaults) | |
| 437 (reset-coding-categories-to-default)) | |
| 438 | |
| 439 ;; Initialize everything so that the remaining Lisp files can contain | |
| 440 ;; extended characters. (They will be in ISO-7 format) | |
| 441 | |
| 442 ;; !!####!! The Lisp files should all be in UTF-8!!! That way, all | |
| 443 ;; special characters appear as high bits and there's no problem with | |
| 444 ;; the Lisp parser trying to read a Mule file and getting all screwed | |
| 445 ;; up. The only other thing then would be characters; we just need to | |
| 446 ;; modify the Lisp parser to read the stuff directly after a ? as | |
| 447 ;; UTF-8 and return a 30-bit value directly, and modify the character | |
| 448 ;; routines a bit to allow such a beast to exist. MAKE IT A POINT TO | |
| 449 ;; IMPLEMENT THIS AS ONE OF MY FUTURE PROJECTS. --ben | |
| 450 | |
| 451 (reset-language-environment) | |
| 452 | |
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453 (coding-system-put 'raw-text 'safe-charsets '(ascii control-1 latin-iso8859-1)) |
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454 |
| 771 | 455 ;;; code-init.el ends here |
