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1 ;;; gnus-ems.el --- functions for making Gnus work under different Emacsen
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2 ;; Copyright (C) 1995,96 Free Software Foundation, Inc.
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3
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4 ;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
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5 ;; Keywords: news
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6
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7 ;; This file is part of GNU Emacs.
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8
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9 ;; GNU Emacs is free software; you can redistribute it and/or modify
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10 ;; it under the terms of the GNU General Public License as published by
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11 ;; the Free Software Foundation; either version 2, or (at your option)
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12 ;; any later version.
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13
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14 ;; GNU Emacs is distributed in the hope that it will be useful,
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15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 ;; GNU General Public License for more details.
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18
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19 ;; You should have received a copy of the GNU General Public License
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20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
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21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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22 ;; Boston, MA 02111-1307, USA.
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23
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24 ;;; Commentary:
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25
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26 ;;; Code:
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27
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28 (eval-when-compile (require 'cl))
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29
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30 (defvar gnus-mouse-2 [mouse-2])
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31
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32 (defalias 'gnus-make-overlay 'make-overlay)
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33 (defalias 'gnus-overlay-put 'overlay-put)
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34 (defalias 'gnus-move-overlay 'move-overlay)
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35 (defalias 'gnus-overlay-end 'overlay-end)
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36 (defalias 'gnus-extent-detached-p 'ignore)
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37 (defalias 'gnus-extent-start-open 'ignore)
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38 (defalias 'gnus-set-text-properties 'set-text-properties)
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39 (defalias 'gnus-group-remove-excess-properties 'ignore)
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40 (defalias 'gnus-topic-remove-excess-properties 'ignore)
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41 (defalias 'gnus-appt-select-lowest-window 'appt-select-lowest-window)
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42 (defalias 'gnus-mail-strip-quoted-names 'mail-strip-quoted-names)
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43 (defalias 'gnus-make-local-hook 'make-local-hook)
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44 (defalias 'gnus-add-hook 'add-hook)
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45 (defalias 'gnus-character-to-event 'identity)
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46 (defalias 'gnus-add-text-properties 'add-text-properties)
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47 (defalias 'gnus-put-text-property 'put-text-property)
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48 (defalias 'gnus-mode-line-buffer-identification 'identity)
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49
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50
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51 (eval-and-compile
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52 (autoload 'gnus-xmas-define "gnus-xmas")
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53 (autoload 'gnus-xmas-redefine "gnus-xmas")
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54 (autoload 'appt-select-lowest-window "appt.el"))
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55
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56 (or (fboundp 'mail-file-babyl-p)
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57 (fset 'mail-file-babyl-p 'rmail-file-p))
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58
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59 ;;; Mule functions.
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60
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61 (defun gnus-mule-cite-add-face (number prefix face)
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62 ;; At line NUMBER, ignore PREFIX and add FACE to the rest of the line.
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63 (if face
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64 (let ((inhibit-point-motion-hooks t)
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65 from to)
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66 (goto-line number)
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67 (if (boundp 'MULE)
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68 (forward-char (chars-in-string prefix))
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69 (forward-char (length prefix)))
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70 (skip-chars-forward " \t")
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71 (setq from (point))
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72 (end-of-line 1)
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73 (skip-chars-backward " \t")
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74 (setq to (point))
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75 (if (< from to)
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76 (gnus-overlay-put (gnus-make-overlay from to) 'face face)))))
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77
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78 (defun gnus-mule-max-width-function (el max-width)
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79 (` (let* ((val (eval (, el)))
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80 (valstr (if (numberp val)
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81 (int-to-string val) val)))
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82 (if (> (length valstr) (, max-width))
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83 (truncate-string valstr (, max-width))
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84 valstr))))
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85
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86 (eval-and-compile
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87 (if (string-match "XEmacs\\|Lucid" emacs-version)
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88 ()
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89
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90 (defvar gnus-mouse-face-prop 'mouse-face
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91 "Property used for highlighting mouse regions.")
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92
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93 (defvar gnus-article-x-face-command
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94 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | xv -quit -"
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95 "String or function to be executed to display an X-Face header.
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96 If it is a string, the command will be executed in a sub-shell
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97 asynchronously. The compressed face will be piped to this command.")
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98
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99 ;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
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100 (defvar gnus-display-type
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101 (condition-case nil
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102 (let ((display-resource (x-get-resource ".displayType" "DisplayType")))
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103 (cond (display-resource (intern (downcase display-resource)))
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104 ((x-display-color-p) 'color)
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105 ((x-display-grayscale-p) 'grayscale)
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106 (t 'mono)))
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107 (error 'mono))
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108 "A symbol indicating the display Emacs is running under.
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109 The symbol should be one of `color', `grayscale' or `mono'. If Emacs
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110 guesses this display attribute wrongly, either set this variable in
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111 your `~/.emacs' or set the resource `Emacs.displayType' in your
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112 `~/.Xdefaults'. See also `gnus-background-mode'.
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113
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114 This is a meta-variable that will affect what default values other
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115 variables get. You would normally not change this variable, but
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116 pounce directly on the real variables themselves.")
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117
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118 (defvar gnus-background-mode
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119 (condition-case nil
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120 (let ((bg-resource (x-get-resource ".backgroundMode"
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121 "BackgroundMode"))
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122 (params (frame-parameters)))
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123 (cond (bg-resource (intern (downcase bg-resource)))
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124 ((and (cdr (assq 'background-color params))
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125 (< (apply '+ (x-color-values
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126 (cdr (assq 'background-color params))))
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2
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127 (* (apply '+ (x-color-values "white")) .6)))
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0
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128 'dark)
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129 (t 'light)))
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130 (error 'light))
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131 "A symbol indicating the Emacs background brightness.
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132 The symbol should be one of `light' or `dark'.
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133 If Emacs guesses this frame attribute wrongly, either set this variable in
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134 your `~/.emacs' or set the resource `Emacs.backgroundMode' in your
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135 `~/.Xdefaults'.
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136 See also `gnus-display-type'.
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137
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138 This is a meta-variable that will affect what default values other
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139 variables get. You would normally not change this variable, but
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140 pounce directly on the real variables themselves."))
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141
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142 (cond
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143 ((string-match "XEmacs\\|Lucid" emacs-version)
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144 (gnus-xmas-define))
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145
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146 ((or (not (boundp 'emacs-minor-version))
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147 (< emacs-minor-version 30))
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148 ;; Remove the `intangible' prop.
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149 (let ((props (and (boundp 'gnus-hidden-properties)
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150 gnus-hidden-properties)))
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151 (while (and props (not (eq (car (cdr props)) 'intangible)))
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152 (setq props (cdr props)))
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153 (and props (setcdr props (cdr (cdr (cdr props))))))
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154 (or (fboundp 'buffer-substring-no-properties)
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155 (defun buffer-substring-no-properties (beg end)
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156 (format "%s" (buffer-substring beg end)))))
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157
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158 ((boundp 'MULE)
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159 (provide 'gnusutil))))
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160
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161 (eval-and-compile
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162 (cond
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163 ((not window-system)
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164 (defun gnus-dummy-func (&rest args))
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165 (let ((funcs '(mouse-set-point set-face-foreground
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166 set-face-background x-popup-menu)))
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167 (while funcs
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168 (or (fboundp (car funcs))
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169 (fset (car funcs) 'gnus-dummy-func))
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170 (setq funcs (cdr funcs))))))
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171 (or (fboundp 'file-regular-p)
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172 (defun file-regular-p (file)
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173 (and (not (file-directory-p file))
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174 (not (file-symlink-p file))
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175 (file-exists-p file))))
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176 (or (fboundp 'face-list)
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177 (defun face-list (&rest args))))
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178
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179 (eval-and-compile
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180 (let ((case-fold-search t))
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181 (cond
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182 ((string-match "windows-nt\\|os/2\\|emx" (format "%s" system-type))
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183 (setq nnheader-file-name-translation-alist
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184 (append nnheader-file-name-translation-alist
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185 '((?: . ?_)
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186 (?+ . ?-))))))))
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187
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188 (defvar gnus-tmp-unread)
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189 (defvar gnus-tmp-replied)
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190 (defvar gnus-tmp-score-char)
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191 (defvar gnus-tmp-indentation)
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192 (defvar gnus-tmp-opening-bracket)
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193 (defvar gnus-tmp-lines)
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194 (defvar gnus-tmp-name)
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195 (defvar gnus-tmp-closing-bracket)
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196 (defvar gnus-tmp-subject-or-nil)
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197
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198 (defun gnus-ems-redefine ()
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199 (cond
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200 ((string-match "XEmacs\\|Lucid" emacs-version)
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201 (gnus-xmas-redefine))
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202
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203 ((boundp 'MULE)
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204 ;; Mule definitions
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205 (defalias 'gnus-truncate-string 'truncate-string)
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206
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207 (fset 'gnus-summary-make-display-table (lambda () nil))
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208 (fset 'gnus-cite-add-face 'gnus-mule-cite-add-face)
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209 (fset 'gnus-max-width-function 'gnus-mule-max-width-function)
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210
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211 (if (boundp 'gnus-check-before-posting)
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212 (setq gnus-check-before-posting
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213 (delq 'long-lines
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214 (delq 'control-chars gnus-check-before-posting))))
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215
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216 (defun gnus-summary-line-format-spec ()
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217 (insert gnus-tmp-unread gnus-tmp-replied
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218 gnus-tmp-score-char gnus-tmp-indentation)
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219 (put-text-property
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220 (point)
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221 (progn
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222 (insert
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223 gnus-tmp-opening-bracket
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224 (format "%4d: %-20s"
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225 gnus-tmp-lines
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226 (if (> (length gnus-tmp-name) 20)
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227 (truncate-string gnus-tmp-name 20)
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228 gnus-tmp-name))
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229 gnus-tmp-closing-bracket)
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230 (point))
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231 gnus-mouse-face-prop gnus-mouse-face)
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232 (insert " " gnus-tmp-subject-or-nil "\n"))
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233 )))
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234
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235
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236 (provide 'gnus-ems)
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237
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238 ;; Local Variables:
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239 ;; byte-compile-warnings: '(redefine callargs)
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240 ;; End:
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241
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242 ;;; gnus-ems.el ends here
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