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1 ;;; w3-toolbar.el --- Toolbar functions for emacs-w3
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2 ;; Author: wmperry
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3 ;; Created: 1997/02/03 15:38:24
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4 ;; Version: 1.8
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5 ;; Keywords: mouse, toolbar
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6
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7 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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8 ;;; Copyright (c) 1995, 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
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29 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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30 ;;; Toolbar specific function for XEmacs 19.12+
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31 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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80
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32 (condition-case ()
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33 (progn
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34 (require 'xpm-button)
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35 (require 'xbm-button))
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36 (error nil))
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0
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37
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38 (defvar w3-toolbar-icon-directory nil "Where the toolbar icons for w3 are.")
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39 (defvar w3-toolbar-back-icon nil "Toolbar icon for back")
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40 (defvar w3-toolbar-forw-icon nil "Toolbar icon for forward")
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41 (defvar w3-toolbar-home-icon nil "Toolbar icon for home")
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42 (defvar w3-toolbar-reld-icon nil "Toolbar icon for reload")
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43 (defvar w3-toolbar-imag-icon nil "Toolbar icon for images")
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44 (defvar w3-toolbar-open-icon nil "Toolbar icon for open url")
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45 (defvar w3-toolbar-print-icon nil "Toolbar icon for printing")
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46 (defvar w3-toolbar-find-icon nil "Toolbar icon for find")
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47 (defvar w3-toolbar-stop-icon nil "Toolbar icon for stop")
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48 (defvar w3-toolbar-help-icon nil "Toolbar icon for help")
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49 (defvar w3-toolbar-hotl-icon nil "Toolbar icon for hotlist")
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50
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51 (defvar w3-link-toolbar-orientation 'bottom
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52 "*Where to put the document specific toolbar. Must be one of these symbols:
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53
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54 default -- place at location specified by `default-toolbar-position'
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55 top -- place along the top of the frame
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56 bottom -- place along the bottom of the frame
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57 right -- place along the right edge of the frame
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58 left -- place along the left edge of the frame
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59 none -- no toolbar")
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60
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61 (defvar w3-toolbar-orientation 'default
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62 "*Where to put the w3 toolbar. Must be one of these symbols:
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63
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64 default -- place at location specified by `default-toolbar-position'
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65 top -- place along the top of the frame
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66 bottom -- place along the bottom of the frame
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67 right -- place along the right edge of the frame
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68 left -- place along the left edge of the frame
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69 none -- no toolbar")
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70
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71 (defvar w3-toolbar-type 'both
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72 "*What the toolbar looks like. Must be one of these symbols:
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73
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74 pictures -- Show icons (without captions if in XEmacs 19.13)
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75 both -- Show icons (with captions if in XEmacs 19.13)
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76 text -- Show only text buttons
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77
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78 Only has any meaning in XEmacs 19.12 when w3-toolbar-orientation is
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79 not `none'.")
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80
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81 (defvar w3-toolbar
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82 '([w3-toolbar-back-icon w3-history-backward (car (w3-history-find-url-internal (url-view-url t))) "Back in history"]
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83 [w3-toolbar-forw-icon w3-history-forward (cdr (w3-history-find-url-internal (url-view-url t))) "Forward in history"]
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84 [w3-toolbar-home-icon w3 t "Go home"]
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85 [:style 2d :size 5]
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86 [w3-toolbar-reld-icon w3-reload-document t "Reload document"]
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87 [w3-toolbar-hotl-icon w3-show-hotlist t "View hotlist"]
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88 [w3-toolbar-imag-icon w3-load-delayed-images w3-delayed-images
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89 "Load images"]
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90 [toolbar-file-icon w3-fetch t "Fetch a URL"]
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91 [toolbar-printer-icon w3-mouse-print-this-url t "Print document"]
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92 [w3-toolbar-find-icon w3-search-forward t "Search"]
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93 ;;[w3-toolbar-stop-icon keyboard-quit t "Stop transaction"]
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94 nil
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95 [w3-toolbar-help-icon w3-show-info-node t "Help"])
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96 "The toolbar for w3")
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97
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98 (defun w3-toolbar-make-captioned-buttons ()
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99 (mapcar
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100 (function
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101 (lambda (x)
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102 (let* ((ext (if (featurep 'xpm) ".xpm" ".xbm"))
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103 (base w3-toolbar-icon-directory)
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104 (up (expand-file-name (concat x "-up" ext) base))
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105 (dn (expand-file-name (concat x "-dn" ext) base))
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106 (no (expand-file-name (concat x "-no" ext) base))
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107 (cap-up (expand-file-name (concat x "-cap-up" ext) base))
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108 (cap-dn (expand-file-name (concat x "-cap-dn" ext) base))
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109 (cap-no (expand-file-name (concat x "-cap-no" ext) base))
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110 (var (intern (concat "w3-toolbar-" x "-icon"))))
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111 (set var
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112 (toolbar-make-button-list up dn no cap-up cap-dn cap-no)))))
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113
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114 '("back" "help" "find" "forw" "home" "hotl" "stop" "imag" "reld")))
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115
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116 (defun w3-make-text-toolbar-button (text)
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117 (let ((bgcol (or
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118 (cdr-safe (assq 'background-toolbar-color (frame-parameters)))
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119 "#befbbefbbefb")))
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120 (if (featurep 'xpm)
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121 (mapcar 'make-glyph (xpm-button-create text 0 "black" bgcol))
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122 (xbm-button-create text 0))))
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123
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124 (defun w3-toolbar-make-text-buttons ()
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125 (let ((bgcol (or (cdr-safe (assq 'background-toolbar-color
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126 (frame-parameters)))
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127 "#befbbefbbefb")))
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128 (setq w3-toolbar-back-icon (w3-make-text-toolbar-button "Back")
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129 w3-toolbar-forw-icon (w3-make-text-toolbar-button "Forward")
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130 w3-toolbar-home-icon (w3-make-text-toolbar-button "Home")
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131 w3-toolbar-reld-icon (w3-make-text-toolbar-button "Reload")
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132 w3-toolbar-hotl-icon (w3-make-text-toolbar-button "Hotlist")
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133 w3-toolbar-imag-icon (w3-make-text-toolbar-button "Images")
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134 w3-toolbar-open-icon (w3-make-text-toolbar-button "Open")
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135 w3-toolbar-print-icon (w3-make-text-toolbar-button "Print")
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136 w3-toolbar-find-icon (w3-make-text-toolbar-button "Find")
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137 w3-toolbar-help-icon (w3-make-text-toolbar-button "Help!"))))
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138
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139 (defun w3-toolbar-make-picture-buttons ()
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140 (mapcar
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141 (function
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142 (lambda (x)
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143 (let* ((ext (if (featurep 'xpm) ".xpm" ".xbm"))
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144 (base w3-toolbar-icon-directory)
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145 (up (expand-file-name (concat x "-cap-up" ext) base))
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146 (dn (expand-file-name (concat x "-cap-dn" ext) base))
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147 (no (expand-file-name (concat x "-cap-no" ext) base))
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148 (var (intern (concat "w3-toolbar-" x "-icon"))))
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149 (set var
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150 (cond
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151 ((and (file-exists-p up) (file-exists-p dn)
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152 (file-exists-p no))
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153 (toolbar-make-button-list up dn no))
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154 ((file-exists-p up)
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155 (toolbar-make-button-list up))
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156 (t nil))))))
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157 '("back" "help" "find" "forw" "home" "hotl" "imag" "reld")))
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158
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159 (defun w3-toolbar-make-buttons ()
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160 (if (not w3-toolbar-icon-directory)
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161 (setq w3-toolbar-icon-directory
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162 (file-name-as-directory
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163 (expand-file-name "w3" data-directory))))
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164 (cond
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165 ((not (file-exists-p w3-toolbar-icon-directory))
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166 (w3-warn 'files "Toolbar directory does not exist."))
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167 ((not (fboundp 'toolbar-make-button-list))
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168 nil)
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169 ((eq w3-toolbar-type 'text)
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170 (w3-toolbar-make-text-buttons))
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171 ((boundp 'toolbar-buttons-captioned-p)
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172 (w3-toolbar-make-captioned-buttons))
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173 (t
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174 (w3-toolbar-make-picture-buttons))))
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175
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176 (defun w3-link-is-defined (rel &optional rev)
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177 (or
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178 (cdr-safe (assoc rel (cdr-safe (assq 'rel w3-current-links))))
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179 (cdr-safe (assoc (or rev rel) (cdr-safe (assq 'rev w3-current-links))))))
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180
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181 ;; Need to create w3-toolbar-glos-icon
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182 ;; w3-toolbar-toc-icon
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183 ;; w3-toolbar-copy-icon
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184 (defvar w3-link-toolbar
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185 '([info::toolbar-prev-icon
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186 (w3-fetch (w3-link-is-defined "previous" "next"))
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187 (w3-link-is-defined "previous" "next")
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188 "Back"]
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189 [info::toolbar-next-icon
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190 (w3-fetch (w3-link-is-defined "next" "previous"))
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191 (w3-link-is-defined "next" "previous")
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192 "Next"]
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193 [info::toolbar-up-icon
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194 (w3-fetch (w3-link-is-defined "up" "down"))
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195 (w3-link-is-defined "up" "down")
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196 "Up"]
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197 [w3-toolbar-home-icon
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198 (w3-fetch (w3-link-is-defined "home"))
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199 (w3-link-is-defined "home")
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200 "Home"]
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201 [w3-toolbar-toc-icon
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202 (w3-fetch (w3-link-is-defined "toc"))
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203 (w3-link-is-defined "toc")
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204 "Contents"]
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205 [w3-toolbar-find-icon
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206 (w3-fetch (w3-link-is-defined "index"))
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207 (w3-link-is-defined "index")
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208 "Index"]
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209 [w3-toolbar-glos-icon
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210 (w3-fetch (w3-link-is-defined "glossary"))
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211 (w3-link-is-defined "glossary")
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212 "Glossary"]
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213 [w3-toolbar-copy-icon
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214 (w3-fetch (w3-link-is-defined "copyright"))
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215 (w3-link-is-defined "copyright")
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216 "Copyright"]
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217 [w3-toolbar-hotl-icon
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218 (w3-fetch (w3-link-is-defined "bookmark"))
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219 (w3-link-is-defined "bookmark")
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220 "Bookmarks"]
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221 nil
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222 [w3-toolbar-help-icon
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223 (w3-fetch (w3-link-is-defined "help"))
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224 (w3-link-is-defined "help")
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225 "Help"]
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226 ))
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227
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228 (defun w3-toolbar-from-orientation (orientation)
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229 (cond
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230 ((eq 'default w3-toolbar-orientation) default-toolbar)
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231 ((eq 'bottom w3-toolbar-orientation) bottom-toolbar)
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232 ((eq 'top w3-toolbar-orientation) top-toolbar)
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233 ((eq 'left w3-toolbar-orientation) left-toolbar)
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234 ((eq 'right w3-toolbar-orientation) right-toolbar)))
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235
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236 (defun w3-toolbar-dimension-from-orientation (orientation)
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237 (cond
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238 ((eq 'default w3-toolbar-orientation) nil)
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239 ((eq 'bottom w3-toolbar-orientation) bottom-toolbar-height)
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240 ((eq 'top w3-toolbar-orientation) top-toolbar-height)
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241 ((eq 'left w3-toolbar-orientation) left-toolbar-width)
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242 ((eq 'right w3-toolbar-orientation) right-toolbar-width)))
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243
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244 (defun w3-ensure-toolbar-visible (orientation)
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245 ;; Make sure a certain toolbar is visible if necessary
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246 ;; This can modify frame parameters, so watch out.
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247 (let ((dimension (w3-toolbar-dimension-from-orientation orientation))
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248 (toolbar (w3-toolbar-from-orientation orientation))
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249 (dimensions nil)
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250 (widths nil)
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251 (heights nil)
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252 (needs nil)
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253 (has nil))
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254 (if (and dimension toolbar
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255 (setq toolbar (specifier-instance toolbar)))
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256 (progn
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257 (setq dimensions (mapcar
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258 (function
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259 (lambda (glyph)
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260 (and (glyphp glyph)
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261 (cons (glyph-width glyph)
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262 (glyph-height glyph)))))
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263 (mapcar 'car
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264 (delq nil
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265 (mapcar
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266 (function (lambda (x)
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267 (and x
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268 (symbol-value
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269 (aref x 0)))))
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270 toolbar))))
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271 widths (sort (mapcar 'car dimensions) '>=)
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272 heights (sort (mapcar 'cdr dimensions) '>=)
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273 needs (+ 7 (if (memq orientation '(top bottom))
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274 (car heights)
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275 (car widths)))
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276 has (specifier-instance dimension))
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277 (if (<= has needs)
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278 (set-specifier dimension (cons (selected-frame) needs)))))))
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279
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280 (defun w3-toolbar-active ()
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281 (interactive)
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282 (let ((toolbar (w3-toolbar-from-orientation w3-toolbar-orientation)))
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283 (if (and toolbar (specifier-instance toolbar))
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284 t
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285 nil)))
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286
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287 (defun w3-toggle-link-toolbar ()
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288 (interactive)
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289 (require 'info) ; For some toolbar buttons
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290 (let* ((w3-toolbar-orientation w3-link-toolbar-orientation)
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291 (toolbar (w3-toolbar-from-orientation w3-toolbar-orientation)))
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292 (if toolbar
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293 (if (w3-toolbar-active)
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294 (set-specifier toolbar (cons (current-buffer) nil))
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295 (set-specifier toolbar w3-link-toolbar (current-buffer))))))
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296
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297 (defun w3-toggle-toolbar ()
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298 (interactive)
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299 (if (eq major-mode 'w3-mode)
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300 (let ((toolbar (w3-toolbar-from-orientation w3-toolbar-orientation)))
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301 (cond
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302 ((w3-toolbar-active)
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303 (set-specifier toolbar (cons (current-buffer) nil)))
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304 (toolbar
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305 (set-specifier toolbar (cons (current-buffer) w3-toolbar)))
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306 (t
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307 (setq w3-toolbar-orientation 'default
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308 toolbar (w3-toolbar-from-orientation w3-toolbar-orientation))
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309 (and toolbar
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310 (set-specifier toolbar (cons (current-buffer) w3-toolbar))))))
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311 (if (not (eq w3-toolbar-orientation 'none))
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312 (setq w3-toolbar-orientation 'none)
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313 (setq w3-toolbar-orientation 'default))))
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314
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315 (defun w3-show-info-node ()
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316 (interactive)
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317 (Info-goto-node "(w3.info)Top"))
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318
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319 (defun w3-mouse-print-this-url (&optional e)
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320 (interactive "e")
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321 (let ((descr '("Print document as"
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322 ["PostScript" (w3-print-this-url nil "PostScript") t]
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323 ["Formatted Text" (w3-print-this-url nil "Formatted Text") t]
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324 ["HTML Source" (w3-print-this-url nil "HTML Source") t]
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325 ["LaTeX'd" (w3-print-this-url nil "LaTeX'd") t]
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326 nil
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327 ["Cancel" (beep) t])))
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328 (popup-dialog-box descr)))
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329
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330 (defun w3-add-toolbar-to-buffer ()
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331 (if (not (featurep 'toolbar))
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332 nil
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333 (let ((toolbar (w3-toolbar-from-orientation w3-toolbar-orientation)))
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334 (if toolbar
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335 (set-specifier toolbar (cons (current-buffer) w3-toolbar))))
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336 (set-specifier toolbar-buttons-captioned-p
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337 (cons (current-buffer) (eq w3-toolbar-type 'both)))))
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338
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339 (provide 'w3-toolbar)
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