annotate lisp/w3/url-vars.el @ 26:441bb1e64a06 r19-15b96

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1 ;;; url-vars.el --- Variables for Uniform Resource Locator tool
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2 ;; Author: wmperry
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3 ;; Created: 1997/02/18 23:35:21
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4 ;; Version: 1.28
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5 ;; Keywords: comm, data, processes, 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 not part of GNU Emacs, but the same permissions apply.
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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
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29 (defconst url-version (let ((x "Exp"))
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30 (if (string-match "State: \\([^ \t\n]+\\)" x)
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31 (substring x (match-beginning 1) (match-end 1))
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32 x))
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33 "Version # of URL package.")
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34
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35 (defvar url-current-can-be-cached t
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36 "*Whether the current URL can be cached.")
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37
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38 (defvar url-current-object nil
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39 "A parsed representation of the current url")
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40
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41 (defvar url-current-callback-func nil
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42 "*The callback function for the current buffer.")
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43
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44 (defvar url-current-callback-data nil
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45 "*The data to be passed to the callback function. This should be a list,
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46 each item in the list will be an argument to the url-current-callback-func.")
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47
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48 (mapcar 'make-variable-buffer-local '(
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49 url-current-callback-data
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50 url-current-callback-func
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51 url-current-can-be-cached
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52 url-current-content-length
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53 url-current-isindex
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54 url-current-mime-encoding
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55 url-current-mime-headers
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56 url-current-mime-type
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57 url-current-mime-viewer
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58 url-current-object
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59 url-current-referer
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60
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61 ;; obsolete
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62 ;; url-current-file
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63 ;; url-current-port
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64 ;; url-current-server
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65 ;; url-current-type
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66 ;; url-current-user
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67 ))
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68
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69 (defvar url-cookie-storage nil "Where cookies are stored.")
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70 (defvar url-cookie-secure-storage nil "Where secure cookies are stored.")
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71 (defvar url-cookie-file nil "*Where cookies are stored on disk.")
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72
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73 (defvar url-default-retrieval-proc 'url-default-callback
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74 "*The default action to take when an asynchronous retrieval completes.")
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75
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76 (defvar url-honor-refresh-requests t
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77 "*Whether to do automatic page reloads at the request of the document
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78 author or the server via the `Refresh' header in an HTTP/1.0 response.
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79 If nil, no refresh requests will be honored.
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80 If t, all refresh requests will be honored.
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81 If non-nil and not t, the user will be asked for each refresh request.")
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82
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83 (defvar url-inhibit-mime-parsing nil
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84 "Whether to parse out (and delete) the MIME headers from a message.")
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85
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86 (defvar url-automatic-caching nil
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87 "*If non-nil, all documents will be automatically cached to the local
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88 disk.")
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89
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90 (defvar url-cache-expired
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91 (function (lambda (t1 t2) (>= (- (car t2) (car t1)) 5)))
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92 "*A function (`funcall'able) that takes two times as its arguments, and
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93 returns non-nil if the second time is 'too old' when compared to the first
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94 time.")
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95
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96 (defvar url-bug-address "wmperry@cs.indiana.edu"
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97 "Where to send bug reports.")
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98
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99 (defvar url-cookie-confirmation nil
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100 "*If non-nil, confirmation by the user is required to accept HTTP cookies.")
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101
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102 (defvar url-personal-mail-address nil
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103 "*Your full email address.
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104 This is what is sent to HTTP/1.0 servers as the FROM field in an HTTP/1.0
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105 request.")
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106
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107 (defvar url-directory-index-file "index.html"
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108 "*The filename to look for when indexing a directory. If this file
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109 exists, and is readable, then it will be viewed instead of
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110 automatically creating the directory listing.")
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111
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112 (defvar url-privacy-level 'none
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113 "*How private you want your requests to be.
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114 HTTP/1.0 has header fields for various information about the user, including
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115 operating system information, email addresses, the last page you visited, etc.
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116 This variable controls how much of this information is sent.
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117
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118 This should a symbol or a list.
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119 Valid values if a symbol are:
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120 none -- Send all information
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121 low -- Don't send the last location
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122 high -- Don't send the email address or last location
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123 paranoid -- Don't send anything
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124
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125 If a list, this should be a list of symbols of what NOT to send.
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126 Valid symbols are:
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127 email -- the email address
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128 os -- the operating system info
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129 lastloc -- the last location
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130 agent -- Do not send the User-Agent string
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131 cookie -- never accept HTTP cookies
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132
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133 Samples:
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134
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135 (setq url-privacy-level 'high)
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136 (setq url-privacy-level '(email lastloc)) ;; equivalent to 'high
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137 (setq url-privacy-level '(os))
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138
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139 ::NOTE::
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140 This variable controls several other variables and is _NOT_ automatically
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141 updated. Call the function `url-setup-privacy-info' after modifying this
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142 variable.
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143 ")
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144
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145 (defvar url-history-list nil "List of urls visited this session.")
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146
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147 (defvar url-inhibit-uncompression nil "Do not do decompression if non-nil.")
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148
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149 (defvar url-keep-history nil
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150 "*Controls whether to keep a list of all the URLS being visited. If
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151 non-nil, url will keep track of all the URLS visited.
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152 If eq to `t', then the list is saved to disk at the end of each emacs
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153 session.")
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154
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155 (defvar url-uncompressor-alist '((".z" . "x-gzip")
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156 (".gz" . "x-gzip")
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157 (".uue" . "x-uuencoded")
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158 (".hqx" . "x-hqx")
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159 (".Z" . "x-compress"))
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160 "*An assoc list of file extensions and the appropriate
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161 content-transfer-encodings for each.")
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162
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163 (defvar url-mail-command 'url-mail
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164 "*This function will be called whenever url needs to send mail. It should
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165 enter a mail-mode-like buffer in the current window.
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166 The commands mail-to and mail-subject should still work in this
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167 buffer, and it should use mail-header-separator if possible.")
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168
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169 (defvar url-proxy-services nil
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170 "*An assoc list of access types and servers that gateway them.
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171 Looks like ((\"http\" . \"hostname:portnumber\") ....) This is set up
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172 from the ACCESS_proxy environment variables in url-do-setup.")
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173
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174 (defvar url-global-history-file nil
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175 "*The global history file used by both Mosaic/X and the url package.
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176 This file contains a list of all the URLs you have visited. This file
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177 is parsed at startup and used to provide URL completion.")
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178
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179 (defvar url-global-history-save-interval 3600
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180 "*The number of seconds between automatic saves of the history list.
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181 Default is 1 hour. Note that if you change this variable after `url-do-setup'
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182 has been run, you need to run the `url-setup-save-timer' function manually.")
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183
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184 (defvar url-global-history-timer nil)
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185
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186 (defvar url-passwd-entry-func nil
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187 "*This is a symbol indicating which function to call to read in a
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188 password. It will be set up depending on whether you are running EFS
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189 or ange-ftp at startup if it is nil. This function should accept the
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190 prompt string as its first argument, and the default value as its
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191 second argument.")
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192
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193 (defvar url-gopher-labels
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194 '(("0" . "(TXT)")
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195 ("1" . "(DIR)")
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196 ("2" . "(CSO)")
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197 ("3" . "(ERR)")
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198 ("4" . "(MAC)")
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199 ("5" . "(PCB)")
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200 ("6" . "(UUX)")
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201 ("7" . "(???)")
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202 ("8" . "(TEL)")
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203 ("T" . "(TN3)")
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204 ("9" . "(BIN)")
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205 ("g" . "(GIF)")
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206 ("I" . "(IMG)")
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207 ("h" . "(WWW)")
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208 ("s" . "(SND)"))
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209 "*An assoc list of gopher types and how to describe them in the gopher
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210 menus. These can be any string, but HTML/HTML+ entities should be
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211 used when necessary, or it could disrupt formatting of the document
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212 later on. It is also a good idea to make sure all the strings are the
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213 same length after entity references are removed, on a strictly
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214 stylistic level.")
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215
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216 (defvar url-gopher-icons
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217 '(
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218 ("0" . "&text.document;")
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219 ("1" . "&folder;")
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220 ("2" . "&index;")
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221 ("3" . "&stop;")
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222 ("4" . "&binhex.document;")
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223 ("5" . "&binhex.document;")
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224 ("6" . "&uuencoded.document;")
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225 ("7" . "&index;")
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226 ("8" . "&telnet;")
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227 ("T" . "&tn3270;")
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228 ("9" . "&binary.document;")
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229 ("g" . "ℑ")
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230 ("I" . "ℑ")
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231 ("s" . "&audio;"))
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232 "*An assoc list of gopher types and the graphic entity references to
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233 show when possible.")
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234
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235 (defvar url-standalone-mode nil "*Rely solely on the cache?")
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236 (defvar url-multiple-p t
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237 "*If non-nil, multiple queries are possible through ` *URL-<i>*' buffers")
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238 (defvar url-default-working-buffer " *URL*" " The default buffer to do all of the processing in.")
26
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239 (defvar url-working-buffer url-default-working-buffer
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240 "The buffer to do all of the processing in.
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241 It defaults to `url-default-working-buffer' and is bound to *URL-<i>*
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242 buffers when used for multiple requests, cf. `url-multiple-p'")
14
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243 (defvar url-current-referer nil "Referer of this page.")
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244 (defvar url-current-content-length nil "Current content length.")
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245 (defvar url-current-isindex nil "Is the current document a searchable index?")
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246 (defvar url-current-mime-encoding nil "MIME encoding of current document.")
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247 (defvar url-current-mime-headers nil "An alist of MIME headers.")
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248 (defvar url-current-mime-type nil "MIME type of current document.")
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249 (defvar url-current-mime-viewer nil "How to view the current MIME doc.")
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250 (defvar url-current-passwd-count 0 "How many times password has failed.")
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251 (defvar url-gopher-types "0123456789+gIThws:;<"
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252 "A string containing character representations of all the gopher types.")
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253 (defvar url-mime-separator-chars (mapcar 'identity
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254 (concat "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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255 "abcdefghijklmnopqrstuvwxyz"
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256 "0123456789'()+_,-./=?"))
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257 "Characters allowable in a MIME multipart separator.")
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258
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259 (defvar url-bad-port-list
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260 '("25" "119" "19")
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261 "*List of ports to warn the user about connecting to. Defaults to just
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262 the mail, chargen, and NNTP ports so you cannot be tricked into sending
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263 fake mail or forging messages by a malicious HTML document.")
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264
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265 (defvar url-be-anal-about-file-attributes nil
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266 "*Whether to use HTTP/1.0 to figure out file attributes
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267 or just guess based on file extension, etc.")
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268
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269 (defvar url-be-asynchronous nil
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270 "*Controls whether document retrievals over HTTP should be done in
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271 the background. This allows you to keep working in other windows
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272 while large downloads occur.")
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273 (make-variable-buffer-local 'url-be-asynchronous)
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274
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275 (defvar url-request-data nil "Any data to send with the next request.")
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276
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277 (defvar url-request-extra-headers nil
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278 "A list of extra headers to send with the next request. Should be
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279 an assoc list of headers/contents.")
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280
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281 (defvar url-request-method nil "The method to use for the next request.")
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282
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283 (defvar url-mime-encoding-string nil
26
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diff changeset
284 "*String to send to the server in the Accept-encoding: field in HTTP/1.0
14
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285 requests. This is created automatically from mm-content-transfer-encodings.")
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286
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287 (defvar url-mime-language-string "*"
26
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diff changeset
288 "*String to send to the server in the Accept-language: field in
14
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289 HTTP/1.0 requests.")
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290
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291 (defvar url-mime-accept-string nil
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292 "String to send to the server in the Accept: field in HTTP/1.0 requests.
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293 This is created automatically from url-mime-viewers, after the mailcap file
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294 has been parsed.")
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295
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296 (defvar url-history-changed-since-last-save nil
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297 "Whether the history list has changed since the last save operation.")
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298
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299 (defvar url-proxy-basic-authentication nil
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300 "Internal structure - do not modify!")
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301
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302 (defvar url-registered-protocols nil
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303 "Internal structure - do not modify! See `url-register-protocol'")
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304
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305 (defvar url-package-version "Unknown" "Version # of package using URL.")
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306
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307 (defvar url-package-name "Unknown" "Version # of package using URL.")
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308
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309 (defvar url-system-type nil "What type of system we are on.")
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310 (defvar url-os-type nil "What OS we are on.")
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311
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312 (defvar url-max-password-attempts 5
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313 "*Maximum number of times a password will be prompted for when a
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314 protected document is denied by the server.")
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315
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316 (defvar url-temporary-directory "/tmp" "*Where temporary files go.")
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317
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318 (defvar url-show-status t
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319 "*Whether to show a running total of bytes transferred. Can cause a
9ee227acff29 Import from CVS: tag r19-15b90
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320 large hit if using a remote X display over a slow link, or a terminal
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321 with a slow modem.")
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322
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323 (defvar url-using-proxy nil
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324 "Either nil or the fully qualified proxy URL in use, e.g.
9ee227acff29 Import from CVS: tag r19-15b90
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325 http://www.domain.com/")
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326
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327 (defvar url-news-server nil
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328 "*The default news server to get newsgroups/articles from if no server
9ee227acff29 Import from CVS: tag r19-15b90
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329 is specified in the URL. Defaults to the environment variable NNTPSERVER
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330 or \"news\" if NNTPSERVER is undefined.")
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331
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332 (defvar url-gopher-to-mime
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333 '((?0 . "text/plain") ; It's a file
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334 (?1 . "www/gopher") ; Gopher directory
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335 (?2 . "www/gopher-cso-search") ; CSO search
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336 (?3 . "text/plain") ; Error
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337 (?4 . "application/mac-binhex40") ; Binhexed macintosh file
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338 (?5 . "application/pc-binhex40") ; DOS binary archive of some sort
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339 (?6 . "archive/x-uuencode") ; Unix uuencoded file
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340 (?7 . "www/gopher-search") ; Gopher search!
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341 (?9 . "application/octet-stream") ; Binary file!
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342 (?g . "image/gif") ; Gif file
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343 (?I . "image/gif") ; Some sort of image
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344 (?h . "text/html") ; HTML source
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345 (?s . "audio/basic") ; Sound file
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346 )
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347 "*An assoc list of gopher types and their corresponding MIME types.")
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348
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349 (defvar url-use-hypertext-gopher t
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350 "*Controls how gopher documents are retrieved.
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351 If non-nil, the gopher pages will be converted into HTML and parsed
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352 just like any other page. If nil, the requests will be passed off to
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353 the gopher.el package by Scott Snyder. Using the gopher.el package
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354 will lose the gopher+ support, and inlined searching.")
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355
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356 (defvar url-global-history-hash-table nil
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357 "Hash table for global history completion.")
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358
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359 (defvar url-nonrelative-link
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360 "^\\([-a-zA-Z0-9+.]+:\\)"
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361 "A regular expression that will match an absolute URL.")
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362
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363 (defvar url-confirmation-func 'y-or-n-p
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364 "*What function to use for asking yes or no functions. Possible
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365 values are 'yes-or-no-p or 'y-or-n-p, or any function that takes a
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366 single argument (the prompt), and returns t only if a positive answer
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367 is gotten.")
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368
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369 (defvar url-gateway-method 'native
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370 "*The type of gateway support to use.
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371 Should be a symbol specifying how we are to get a connection off of the
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372 local machine.
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373
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374 Currently supported methods:
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375 'telnet :: Run telnet in a subprocess to connect
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376 'rlogin :: Rlogin to another machine to connect
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377 'socks :: Connects through a socks server
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378 'ssl :: Connection should be made with SSL
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379 'tcp :: Use the excellent tcp.el package from gnus.
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380 This simply does a (require 'tcp), then sets
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381 url-gateway-method to be 'native.
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382 'native :: Use the native open-network-stream in emacs
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383 ")
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384
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385 (defvar url-running-xemacs (string-match "XEmacs" emacs-version)
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386 "*Got XEmacs?")
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387
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388 (defvar url-default-ports '(("http" . "80")
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389 ("gopher" . "70")
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390 ("telnet" . "23")
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391 ("news" . "119")
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392 ("https" . "443")
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393 ("shttp" . "80"))
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394 "An assoc list of protocols and default port #s")
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395
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396 (defvar url-setup-done nil "*Has setup configuration been done?")
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397
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398 (defvar url-source nil
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399 "*Whether to force a sourcing of the next buffer. This forces local
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400 files to be read into a buffer, no matter what. Gets around the
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401 optimization that if you are passing it to a viewer, just make a
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402 symbolic link, which looses if you want the source for inlined
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403 images/etc.")
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404
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405 (defconst weekday-alist
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406 '(("Sunday" . 0) ("Monday" . 1) ("Tuesday" . 2) ("Wednesday" . 3)
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407 ("Thursday" . 4) ("Friday" . 5) ("Saturday" . 6)
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408 ("Tues" . 2) ("Thurs" . 4)
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409 ("Sun" . 0) ("Mon" . 1) ("Tue" . 2) ("Wed" . 3)
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410 ("Thu" . 4) ("Fri" . 5) ("Sat" . 6)))
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411
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412 (defconst monthabbrev-alist
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413 '(("Jan" . 1) ("Feb" . 2) ("Mar" . 3) ("Apr" . 4) ("May" . 5) ("Jun" . 6)
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414 ("Jul" . 7) ("Aug" . 8) ("Sep" . 9) ("Oct" . 10) ("Nov" . 11) ("Dec" . 12))
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415 )
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416
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417 (defvar url-lazy-message-time 0)
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418
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419 (defvar url-extensions-header "Security/Digest Security/SSL")
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420
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421 (defvar url-mailserver-syntax-table
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422 (copy-syntax-table emacs-lisp-mode-syntax-table)
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423 "*A syntax table for parsing the mailserver URL")
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424
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425 (modify-syntax-entry ?' "\"" url-mailserver-syntax-table)
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426 (modify-syntax-entry ?` "\"" url-mailserver-syntax-table)
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427 (modify-syntax-entry ?< "(>" url-mailserver-syntax-table)
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428 (modify-syntax-entry ?> ")<" url-mailserver-syntax-table)
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429 (modify-syntax-entry ?/ " " url-mailserver-syntax-table)
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430
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431 ;;; Make OS/2 happy - yeeks
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432 (defvar tcp-binary-process-input-services nil
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433 "*Make OS/2 happy with our CRLF pairs...")
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434
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435 (provide 'url-vars)