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32
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1 ;;; w3-cus.el --- Customization support for Emacs-W3
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2 ;; Author: wmperry
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3 ;; Created: 1997/03/14 06:51:36
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4 ;; Version: 1.3
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5 ;; Keywords: comm, help, hypermedia
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6
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7 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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8 ;;; Copyright (c) 1993 - 1996 by William M. Perry (wmperry@cs.indiana.edu)
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9 ;;; Copyright (c) 1996, 1997 Free Software Foundation, Inc.
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10 ;;;
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11 ;;; This file is part of GNU Emacs.
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12 ;;;
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13 ;;; GNU Emacs is free software; you can redistribute it and/or modify
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14 ;;; it under the terms of the GNU General Public License as published by
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15 ;;; the Free Software Foundation; either version 2, or (at your option)
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16 ;;; any later version.
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17 ;;;
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18 ;;; GNU Emacs is distributed in the hope that it will be useful,
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19 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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20 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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21 ;;; GNU General Public License for more details.
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22 ;;;
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23 ;;; You should have received a copy of the GNU General Public License
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24 ;;; along with GNU Emacs; see the file COPYING. If not, write to the
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25 ;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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26 ;;; Boston, MA 02111-1307, USA.
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27 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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28 (eval-and-compile
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29 (condition-case ()
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30 (require 'custom)
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31 (error nil))
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32 (if (and (featurep 'custom) (fboundp 'custom-declare-variable))
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33 nil ;; We've got what we needed
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34 ;; We have the old custom-library, hack around it!
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35 (defmacro defcustom (var value doc &rest args)
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36 (` (defvar (, var) (, value) (, doc))))))
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37
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38 ;;; File related variables
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39 (defcustom w3-configuration-directory "~/.w3/"
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40 "*Directory where Emacs-w3 can find its configuration files"
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41 :group 'w3-files
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42 :type 'directory)
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43
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44 (defcustom w3-default-configuration-file nil
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45 "*Where per-user customizations of w3 are kept."
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46 :group 'w3-files
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47 :type 'file)
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48
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49 (defcustom w3-default-homepage nil
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50 "*The url to open at startup. It can be any valid URL.
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51 This will default to the environment variable WWW_HOME if you do not
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52 set it in your .emacs file. If WWW_HOME is undefined, then it will
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53 default to the hypertext documentation for W3 at Indiana University."
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54 :group 'w3-files
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55 :type 'string)
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56
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57 (defcustom w3-default-stylesheet nil
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58 "*The filename of the users default stylesheet."
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59 :group 'w3-files
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60 :type 'file)
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61
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62 (defcustom w3-hotlist-file nil
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63 "*Hotlist filename.
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64 This should be the name of a file that is stored in either
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65 NCSA's Mosaic/X or Netscape/X format. It is used to keep a listing
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66 of commonly accessed URL's without having to go through 20 levels of
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67 menus to get to them."
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68 :group 'w3-files
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69 :type 'file)
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70
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71 (defcustom w3-documentation-root "http://www.cs.indiana.edu/elisp/w3/docs/"
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72 "*Where the w3 documentation lives. This MUST end in a slash."
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73 :group 'w3-files
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74 :type 'string)
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75
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76 (defcustom w3-temporary-directory (or (getenv "TMPDIR") "/tmp")
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77 "*Where temporary files go."
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78 :group 'w3-files
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79 :type 'directory)
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80
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81 ;;; Display related variables
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82 (defcustom w3-display-frames nil
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83 "*Fetch frames - not optimal."
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84 :group 'w3-display
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85 :type 'boolean)
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86
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87 (defcustom w3-do-incremental-display nil
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88 "*Whether to do incremental display of pages or not."
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89 :group 'w3-display
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90 :type 'boolean)
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91
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92 (defcustom w3-echo-link '(title url text name)
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93 "*Whether to display the URL of a link when tabbing through links.
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94 Value is a list of one or more of the following symbols:
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95
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96 url == url of the target
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97 text == text of the link
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98 title == title attribute of the link
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99 name == name or id attribute of the link
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100
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101 If none of the information is available, nothing will be shown for the link
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102 in menus, etc."
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103 :group 'w3-display
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104 :type '(set (const :tag "URL" :value url)
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105 (const :tag "Link Text" :value text)
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106 (const :tag "Title of the link as defined in the HTML tag"
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107 :value title)
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108 (const :tag "Name of the link as defined in the HTML tag"
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109 :value name)))
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110
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111 (defcustom w3-horizontal-rule-char ?-
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112 "*The character to use to create a horizontal rule.
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113 Must be the character's code, not a string. This character is
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114 replicated across the screen to create a division."
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115 :group 'w3-display
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116 :type 'character)
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117
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118 (defcustom w3-defined-link-types
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119 ;; This is the HTML3.0 list (downcased) plus "made".
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120 '("previous" "next" "up" "down" "home" "toc" "index" "glossary"
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121 "copyright" "bookmark" "help" "made")
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122 "A list of the (lower-case) names which have special significance
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123 as the values of REL or REV attributes of <link> elements. They will
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124 be presented on the toolbar or the links menu, for instance."
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125 :group 'w3-display
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126 :type '(repeat string))
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127
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128 ;;; Parsing related variables
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129 (defcustom w3-debug-html nil
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130 "*Whether to gripe about bad HTML or not."
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131 :group 'w3-parsing
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132 :type '(choice (const :tag "HTML Errors" :value t)
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133 (const :tag "Errors and stylistic issues" :value style)
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134 (const :tag "None" :value nil)))
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135
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136 (defcustom w3-debug-buffer "*HTML Debug*"
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137 "*Name of buffer to store debugging information in."
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138 :group 'w3-parsing
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139 :type 'string)
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140
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141 ;;; Image related variables
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142 (defcustom w3-auto-image-alt t
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143 "*Whether emacs-w3 should create an alt attribute for an image that
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144 is missing it.
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145 If nil, emacs-w3 will not automatically create an ALT attribute.
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146 If t, the alt attribute will be [IMAGE(nameofimage)]
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147 If a string, it should be a string suitable for running through format,
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148 with only one %s, which will be replaced with just the filename of the
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149 graphic that is not loaded."
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150 :group 'w3-images
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151 :type '(choice (const :tag "None" :value nil)
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152 (const :tag "Default" :value t)
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153 string))
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154
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155 (defcustom w3-icon-directory "http://cs.indiana.edu/elisp/w3/icons/"
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156 "*Where to find standard icons. Must end in a /!"
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157 :group 'w3-images
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158 :type 'string)
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159
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160 (defcustom w3-icon-format 'gif
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161 "*Image format the default icons are expected to be in.
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162 This is a symbol, string or nil, specifing what file extension to use.
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163 If nil, then no file extension is used."
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164 :group 'w3-images
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165 :type '(choice (const :tag "GIF Image" :value gif)
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166 (const :tag "XPM Image" :value xpm)
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167 (const :tag "XBM Image" :value xbm)
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168 (const :tag "Let the server decide" :value nil)
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169 (string :tag "Other")))
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170
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171 (defcustom w3-delay-image-loads nil
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172 "*Whether to delay image loading, or automatically retrieve them."
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173 :group 'w3-images
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174 :type 'boolean)
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175
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176 (defcustom w3-image-mappings
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177 '(
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178 ("image/x-xbitmap" . xbm)
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179 ("image/xbitmap" . xbm)
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180 ("image/xbm" . xbm)
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181 ("image/jpeg" . jpeg)
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182 ("image/gif" . gif)
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183 ("image/png" . png)
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184 ("image/x-fax" . g3fax)
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185 ("image/x-raster" . rast)
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186 ("image/windowdump" . xwd)
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187 ("image/x-icon" . icon)
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188 ("image/portable-graymap" . pgm)
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189 ("image/portable-pixmap" . ppm)
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190 ("image/x-pixmap" . xpm)
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191 ("image/x-xpixmap" . xpm)
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192 ("image/pict" . pict)
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193 ("image/x-rgb" . sgi)
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194 ("image/x-sgi" . sgi)
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195 ("image/x-macpaint" . macpt)
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196 ("image/x-targa" . tga)
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197 ("image/tiff" . tiff)
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198 )
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199 "*How to map MIME types to image types for the `image' package.
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200 Each entry is a cons cell of MIME types and image-type symbols."
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201 :group 'w3-images
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202 :type '(repeat cons))
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203
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204 ;;; Printing variables
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205 (defcustom w3-latex-docstyle "{article}"
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206 "*The documentstyle to use when printing or mailing files as LaTeX.
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207 Good defaults are: {article}, [psfig,twocolumn]{article}, etc."
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208 :group 'w3-printing
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209 :type 'string)
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210
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211 (defcustom w3-latex-print-links nil
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212 "*If non-nil, prints the URLs of hypertext links as endnotes at the end of
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213 the document. If `footnote', prints the URL's as footnotes on a page."
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214 :group 'w3-printing
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215 :type '(choice (const :tag "As endnotes" :value t)
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216 (const :tag "As footnotes" :value footnote)
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217 (const :tag "Do not print" :value nil)))
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218
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219 (defcustom w3-latex-use-latex2e nil
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220 "*If non-nil, configures LaTeX parser to use LaTeX2e syntax. A `nil'
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221 value indicates that LaTeX 2.0.9 compatibility will be used instead."
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222 :group 'w3-printing
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223 :type 'boolean)
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224
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225 (defcustom w3-latex-packages nil
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226 "*List of LaTeX packages to include when converting HTML to LaTeX.
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227 Currently this is only used if `w3-latex-use-latex2e' is non-nil."
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228 :group 'w3-printing
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229 :type '(repeat string))
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230
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231 (defcustom w3-latex-use-maketitle nil
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232 "*Non-nil makes the LaTeX parser use real LaTeX title pages."
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233 :group 'w3-printing
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234 :type 'boolean)
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235
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236 ;;; Menus
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237 (defcustom w3-max-menu-length 35
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238 "*The maximum length of a pulldown menu before it will be split into
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239 smaller chunks, with the first part as a submenu, followed by the rest
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240 of the menu."
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241 :group 'w3-menus
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242 :type 'integer)
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243
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244 (defcustom w3-max-menu-width 40
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245 "*The maximum width of a pulldown menu choice."
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246 :group 'w3-menus
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247 :type 'integer)
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248
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249 ;;; Advanced stuff
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250 (defcustom w3-modeline-format
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251 '(" " ("W3"
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252 (w3-netscape-emulation-minor-mode
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253 " (NS)")
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254 (w3-lynx-emulation-minor-mode
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255 " (Lynx)")
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256 ": "
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257 (40 (-40 "%b"))
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258 " "
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259 (w3-current-isindex "[Searchable] ")
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260 "%p" " " global-mode-string))
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261 "*The modeline format string when in w3 mode"
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262 :group 'w3-advanced
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263 :type 'list)
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264
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265 (defcustom w3-netscape-compatible-comments t
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266 "*Whether to honor netscape-style <! > comments.
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267 Ye gods I wish I could turn this off by default."
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268 :group 'w3-parsing
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269 :type 'boolean)
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270
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271 (defcustom w3-notify 'semibully
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272 "*Selects the behavior when w3 page is ready.
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273 This variable may have one of the following values:
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274
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275 newframe -- put the w3 page in its own frame
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276 bully -- make the w3 page the current buffer and only window
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277 semibully -- make the w3 page the current buffer in the same window
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278 aggressive -- make the w3 page the current buffer in the other window
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279 friendly -- display w3page in other window but don't make current
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280 polite -- don't display w3 page, but prints message when ready (beeps)
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281 quiet -- like `polite', but don't beep
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282 meek -- make no indication that page is ready
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283
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284 Any other value of `w3-notify' is equivalent to `meek'."
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285 :group 'w3-display
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286 :type '(choice (const :tag "Display in a new frame"
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287 :value newframe)
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288 (const :tag "Display in the current window, select buffer, and kill other windows"
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289 :value bully)
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290 (const :tag "Display in the current window, select buffer"
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291 :value semibully)
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292 (const :tag "Display in another window, select buffer"
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293 :value aggressive)
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294 (const :tag "Display in another window, but do not select it"
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295 :value friendly)
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296 (const :tag "Do not display page, but show a message and beep"
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297 :value polite)
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298 (const :tag "Do not display page, but show a message (no beep)"
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299 :value quiet)
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300 (const :tag "Do not indicate that the page has been retrieved"
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301 :value meek)))
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302
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303 (defcustom w3-popup-menu-on-mouse-3 t
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304 "*Non-nil value means W3 should provide context-sensitive menus on mouse-3.
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305 A nil value means W3 should not change the binding of mouse-3."
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306 :group 'w3-display
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307 :type 'boolean)
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308
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309 (defcustom w3-print-command "lpr -h -d"
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310 "*Print command for dvi files.
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311 This is usually 'lpr -h -d' to send it to a postscript printer, but you can set
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312 it up so that it is any command that takes a dvi file as its last argument."
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313 :group 'w3-printing
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314 :type 'string)
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315
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316 (defcustom w3-reuse-buffers 'yes
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317 "What to do when following a link will re-fetch a document that has
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318 already been fetched into a W3 buffer. Possible values are: nil,
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319 'yes, and 'no. Nil means ask the user if we should reuse the buffer.
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320 A value of 'yes means assume the user wants us to reuse the buffer.
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321 A value of 'no means assume the user wants us to re-fetch the document.
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322
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323 This will also accept:
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324 'no ==> always reload
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325 'yes ==> always reuse
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326 'ask ==> always ask"
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327 :group 'w3-display
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328 :type '(choice (const :tag "Always reload" :value no)
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329 (const :tag "Always reuse" :value yes)
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330 (const :tag "Always ask" :value ask)))
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331
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332 (defcustom w3-right-margin 2
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333 "*Default right margin for Emacs-W3 buffers.
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334 This amount is subtracted from (window-width) for each new WWW buffer
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335 and used as the new fill-column."
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336 :group 'w3-display
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337 :type 'integer)
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338
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339 (defcustom w3-maximum-line-length nil
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340 "*Maximum length of a line.
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341 If nil, then lines can extend all the way to the window margin."
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342 :group 'w3-display
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343 :type 'integer)
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344
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345 (defcustom w3-track-mouse t
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346 "*Whether to track the mouse and message the url under the mouse."
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347 :group 'w3-display
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348 :type 'boolean)
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349
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350 (defcustom w3-honor-stylesheets t
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351 "*Whether to let a document specify a CSS stylesheet."
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352 :group 'w3-display
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353 :type 'boolean)
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354
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355 (defcustom w3-user-colors-take-precedence nil
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356 "*Whether to let a document define certain colors about itself.
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357 Like foreground and background colors and pixmaps, color of links and
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358 visited links, etc."
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359 :group 'w3-display
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360 :type 'boolean)
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361
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362 ;;; Hook Variables
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363 (defcustom w3-load-hook nil
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364 "*Hooks to be run after loading w3."
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365 :group 'w3-hooks
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366 :type 'hook)
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367
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368 (defcustom w3-mode-hook nil
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369 "*Hooks to be run after entering w3-mode."
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370 :group 'w3-hooks
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371 :type 'hook)
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372
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373 (defcustom w3-source-file-hook nil
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374 "*Hooks to be run after getting document source."
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375 :group 'w3-hooks
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376 :type 'hook)
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377
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378 (provide 'w3-cus)
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