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1 ;;; w3-e19.el --- Emacs 19.xx specific functions for emacs-w3
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2 ;; Author: wmperry
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3 ;; Created: 1997/07/08 14:00:33
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4 ;; Version: 1.28
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5 ;; Keywords: faces, help, mouse, 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
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29 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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30 ;;; Enhancements For Emacs 19
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31 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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138
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32 (eval-when-compile
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33 (require 'w3-props))
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34 (require 'w3-forms)
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35 (require 'font)
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36 (require 'w3-script)
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37
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38 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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39 ;;; Help menu
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40 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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41 (defvar w3-e19-hotlist-menu nil "A menu for hotlists.")
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42 (defvar w3-e19-links-menu nil "A buffer-local menu for hyperlinks.")
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43 (defvar w3-e19-nav-menu nil "A buffer-local menu for html based <link> tags.")
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44 (defvar w3-e19-window-width nil)
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45
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46 (mapcar 'make-variable-buffer-local
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47 '(w3-e19-hotlist-menu
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48 w3-e19-window-width
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49 w3-e19-links-menu
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50 w3-e19-nav-menu))
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51
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52 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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53 ;;; Functions to build menus of urls
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54 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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55 (defun w3-e19-show-hotlist-menu ()
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56 (interactive)
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57 (let ((keymap (easy-menu-create-keymaps "Hotlist"
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58 (w3-menu-hotlist-constructor nil)))
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59 (x nil)
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60 (y nil))
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61 (setq x (x-popup-menu t keymap)
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62 y (and x (lookup-key keymap (apply 'vector x))))
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63 (if (and x y)
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64 (funcall y))))
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65
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66 (defun w3-e19-show-links-menu ()
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67 (interactive)
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68 (if (not w3-e19-links-menu)
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69 (w3-build-FSF19-menu))
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80
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70 (let (x y)
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71 (setq x (x-popup-menu t w3-e19-links-menu)
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72 y (and x (lookup-key w3-e19-links-menu (apply 'vector x))))
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73 (if (and x y)
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74 (funcall y))))
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75
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76 (defun w3-e19-show-navigate-menu ()
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77 (interactive)
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78 (if (not w3-e19-nav-menu)
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79 (w3-build-FSF19-menu))
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80 (let (x y)
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81 (setq x (x-popup-menu t w3-e19-nav-menu)
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82 y (and x (lookup-key w3-e19-nav-menu (apply 'vector x))))
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83 (if (and x y)
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84 (funcall y))))
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85
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86 (defun w3-build-FSF19-menu ()
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87 ;; Build emacs19 menus from w3-links-list
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88 (let ((links (w3-menu-html-links-constructor nil))
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89 (hlink (w3-menu-links-constructor nil)))
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90 (setq w3-e19-nav-menu (easy-menu-create-keymaps "Navigate" links)
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91 w3-e19-links-menu (easy-menu-create-keymaps "Links" hlink))))
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92
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93 (defun w3-setup-version-specifics ()
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94 ;; Set up routine for emacs 19
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95 (require 'lmenu) ; for popup-menu
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96 )
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97
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98 (defun w3-store-in-clipboard (str)
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99 "Store string STR in the system clipboard"
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100 (cond
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101 ((boundp 'interprogram-cut-function)
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102 (if interprogram-cut-function
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103 (funcall interprogram-cut-function str t)))
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104 (t
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105 (case (device-type)
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106 (x (x-select-text str))
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107 (pm (pm-put-clipboard str))
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108 (ns (ns-store-pasteboard-internal str))
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109 (otherwise nil)))))
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110
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110
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111 (defun w3-e19-no-read-only (st nd)
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112 ;; Make sure we don't yank any read-only data out of this buffer
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113 (let ((inhibit-read-only t)
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114 (after-change-functions nil)
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115 (after-change-function nil))
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116 (put-text-property st nd 'w3-munged-ro t)
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110
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117 (put-text-property st nd 'read-only nil)))
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118
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119 (defun w3-mode-version-specifics ()
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120 ;; Emacs 19 specific stuff for w3-mode
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118
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121 (declare (special w3-face-index w3-display-background-properties))
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122 (make-local-variable 'track-mouse)
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123 (set (make-local-variable 'buffer-access-fontify-functions) 'w3-e19-no-read-only)
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124 (set (make-local-variable 'buffer-access-fontified-property) 'w3-munged-ro)
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125 (setq w3-e19-window-width (window-width))
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118
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126 (if w3-track-mouse (setq track-mouse t))
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127 (if w3-display-background-properties
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128 (let ((face (w3-make-face (intern
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129 (format "w3-style-face-%05d" w3-face-index))
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130 "An Emacs-W3 face... don't edit by hand." t))
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131 (fore (car w3-display-background-properties))
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132 (inhibit-read-only t)
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133 (back (cdr w3-display-background-properties)))
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134 (setq w3-face-index (1+ w3-face-index))
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135 (if fore (font-set-face-foreground face fore))
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136 (if back (font-set-face-background face back))
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137 (fillin-text-property (point-min) (point-max) 'face 'face face))))
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138
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122
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139 (defun w3-text-pixel-width (str &optional face)
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140 "Return the pixel-width of a chunk of text STR with face FACE."
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141 (* (length str) (frame-char-width)))
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142
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143 (defun w3-mouse-handler (e)
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144 "Function to message the url under the mouse cursor"
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145 (interactive "e")
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146 (let* ((pt (posn-point (event-start e)))
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147 (good (eq (posn-window (event-start e)) (selected-window)))
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102
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148 (mouse-events nil))
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149 (if (not (and good pt (number-or-marker-p pt)))
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150 nil
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151 (widget-echo-help pt)
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152 ;; Need to handle onmouseover, on mouseout
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153 (setq mouse-events (w3-script-find-event-handlers pt 'mouse))
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154 (if (assq 'onmouseover mouse-events)
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155 (w3-script-evaluate-form (cdr (assq 'onmouseover mouse-events)))))))
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156
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157 (defun w3-window-size-change-function (frame)
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158 (let ((first (frame-first-window frame))
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159 (cur nil))
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160 (while (not (eq cur first))
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161 (setq cur (if cur (next-window cur nil frame) first))
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162 (save-excursion
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163 (set-buffer (window-buffer cur))
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164 (if (and (eq major-mode 'w3-mode)
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165 (not (eq (window-width cur) w3-e19-window-width)))
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166 (w3-refresh-buffer))))))
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167
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168
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169 (provide 'w3-emacs19)
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170 (provide 'w3-e19)
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