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14
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1 ;;; w3-display.el --- display engine v99999
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2 ;; Author: wmperry
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3 ;; Created: 1997/01/02 20:20:45
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4 ;; Version: 1.90
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5 ;; Keywords: faces, help, hypermedia
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6
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7 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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8 ;;; Copyright (c) 1996 by William M. Perry (wmperry@cs.indiana.edu)
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9 ;;; Copyright (c) 1996 Free Software Foundation, Inc.
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10 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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11 ;;;
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12 ;;; This file is part of GNU Emacs.
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13 ;;;
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14 ;;; GNU Emacs is free software; you can redistribute it and/or modify
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15 ;;; it under the terms of the GNU General Public License as published by
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16 ;;; the Free Software Foundation; either version 2, or (at your option)
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17 ;;; any later version.
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18 ;;;
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19 ;;; GNU Emacs is distributed in the hope that it will be useful,
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20 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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21 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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22 ;;; GNU General Public License for more details.
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23 ;;;
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24 ;;; You should have received a copy of the GNU General Public License
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25 ;;; along with GNU Emacs; see the file COPYING. If not, write to the
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26 ;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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27 ;;; Boston, MA 02111-1307, USA.
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28 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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29 (require 'cl)
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30 (require 'css)
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31 (require 'font)
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32 (require 'w3-widget)
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33 (require 'w3-imap)
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34
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35 (defmacro w3-d-s-var-def (var)
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36 (` (make-variable-buffer-local (defvar (, var) nil))))
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37
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38 (w3-d-s-var-def w3-display-open-element-stack)
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39 (w3-d-s-var-def w3-display-alignment-stack)
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40 (w3-d-s-var-def w3-display-list-stack)
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41 (w3-d-s-var-def w3-display-form-stack)
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42 (w3-d-s-var-def w3-display-whitespace-stack)
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43 (w3-d-s-var-def w3-display-font-family-stack)
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44 (w3-d-s-var-def w3-display-font-weight-stack)
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45 (w3-d-s-var-def w3-display-font-variant-stack)
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46 (w3-d-s-var-def w3-display-font-size-stack)
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47 (w3-d-s-var-def w3-face-color)
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48 (w3-d-s-var-def w3-face-background)
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49 (w3-d-s-var-def w3-active-faces)
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50 (w3-d-s-var-def w3-active-voices)
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51 (w3-d-s-var-def w3-current-form-number)
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52 (w3-d-s-var-def w3-face-font-family)
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53 (w3-d-s-var-def w3-face-font-weight)
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54 (w3-d-s-var-def w3-face-font-variant)
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55 (w3-d-s-var-def w3-face-font-size)
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56 (w3-d-s-var-def w3-face-font-family)
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57 (w3-d-s-var-def w3-face-font-size)
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58 (w3-d-s-var-def w3-face-font-spec)
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59 (w3-d-s-var-def w3-face-text-decoration)
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60 (w3-d-s-var-def w3-face-face)
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61 (w3-d-s-var-def w3-face-descr)
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62 (w3-d-s-var-def w3-face-pixmap)
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63 (w3-d-s-var-def w3-display-css-properties)
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64
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65 (eval-when-compile
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66 (defmacro w3-get-attribute (attr)
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67 (` (cdr-safe (assq (, attr) args))))
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68
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69 (defmacro w3-get-face-info (info)
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70 (let ((var (intern (format "w3-face-%s" info))))
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71 (` (push (w3-get-style-info (quote (, info)) node (car (, var)))
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72 (, var)))))
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73
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74 (defmacro w3-pop-face-info (info)
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75 (let ((var (intern (format "w3-face-%s" info))))
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76 (` (pop (, var)))))
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77
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78 (defmacro w3-get-all-face-info ()
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79 (`
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80 (progn
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81 (w3-get-face-info font-family)
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82 (w3-get-face-info font-weight)
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83 (w3-get-face-info font-variant)
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84 (w3-get-face-info font-size)
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85 (w3-get-face-info text-decoration)
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86 ;;(w3-get-face-info pixmap)
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87 (w3-get-face-info color)
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88 (w3-get-face-info background)
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89 (setq w3-face-font-spec (make-font
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90 :weight (car w3-face-font-weight)
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91 :family (car w3-face-font-family)
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92 :size (car w3-face-font-size))))))
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93
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94 (defmacro w3-pop-all-face-info ()
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95 (`
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96 (progn
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97 (w3-pop-face-info font-family)
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98 (w3-pop-face-info font-weight)
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99 (w3-pop-face-info font-variant)
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100 (w3-pop-face-info font-size)
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101 (w3-pop-face-info text-decoration)
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102 ;;(w3-pop-face-info pixmap)
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103 (w3-pop-face-info color)
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104 (w3-pop-face-info background))))
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105
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106 )
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107
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108 (defvar w3-face-cache nil "Cache for w3-face-for-element")
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109 (defvar w3-face-index 0)
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110 (defvar w3-image-widgets-waiting nil)
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111
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112 (make-variable-buffer-local 'w3-last-fill-pos)
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113
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114 (defconst w3-fill-prefixes-vector
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115 (let ((len 0)
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116 (prefix-vector (make-vector 80 nil)))
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117 (while (< len 80)
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118 (aset prefix-vector len (make-string len ? ))
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119 (setq len (1+ len)))
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120 prefix-vector))
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121
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122 (defconst w3-line-breaks-vector
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123 (let ((len 0)
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124 (breaks-vector (make-vector 10 nil)))
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125 (while (< len 10)
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126 (aset breaks-vector len (make-string len ?\n))
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127 (setq len (1+ len)))
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128 breaks-vector))
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129
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130 (defun w3-pause ()
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131 (cond
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132 (w3-running-FSF19 (sit-for 0))
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133 (w3-running-xemacs
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134 (sit-for 0))
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135 ;; (if (and (not (sit-for 0)) (input-pending-p))
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136 ;; (condition-case ()
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137 ;; (dispatch-event (next-command-event))
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138 ;; (error nil)))
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139 (t (sit-for 0))))
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140
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141 (defmacro w3-get-pad-string (len)
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142 (` (cond
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143 ((< (, len) 0)
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144 "")
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145 ((< (, len) 80)
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146 (aref w3-fill-prefixes-vector (, len)))
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147 (t (make-string (, len) ? )))))
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148
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149 (defsubst w3-set-fill-prefix-length (len)
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150 (setq fill-prefix (if (< len (- (or w3-strict-width (window-width)) 4))
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151 (w3-get-pad-string len)
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152 (url-warn
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153 'html
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154 "Runaway indentation! Too deep for window width!")
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155 fill-prefix)))
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156
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157 (defsubst w3-get-style-info (info node &optional default)
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158 (or (cdr-safe (assq info w3-display-css-properties)) default))
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159
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160 (defun w3-decode-area-coords (str)
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161 (let (retval)
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162 (while (string-match "\\([ \t0-9]+\\),\\([ \t0-9]+\\)" str)
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163 (setq retval (cons (vector (string-to-int (match-string 1 str))
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164 (string-to-int (match-string 2 str))) retval)
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165 str (substring str (match-end 0) nil)))
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166 (if (string-match "\\([0-9]+\\)" str)
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167 (setq retval (cons (vector (+ (aref (car retval) 0)
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168 (string-to-int (match-string 1 str)))
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169 (aref (car retval) 1)) retval)))
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170 (nreverse retval)))
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171
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172 (defun w3-normalize-color (color)
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173 (cond
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174 ((valid-color-name-p color)
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175 color)
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176 ((valid-color-name-p (concat "#" color))
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177 (concat "#" color))
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178 ((string-match "[ \t\r\n]" color)
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179 (w3-normalize-color
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180 (mapconcat (function (lambda (x) (if (memq x '(?\t ?\r ?\n ? )) ""
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181 (char-to-string x)))) color "")))
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182 ((valid-color-name-p (font-normalize-color color))
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183 (font-normalize-color color))
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184 (t
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185 (w3-warn 'html (format "Bad color specification: %s" color))
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186 nil)))
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187
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188 (defsubst w3-voice-for-element (node)
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189 (if (featurep 'emacspeak)
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190 (let (family gain left right pitch pitch-range stress richness voice)
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191 (setq family (w3-get-style-info 'voice-family node)
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192 gain (w3-get-style-info 'gain node)
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193 left (w3-get-style-info 'left-volume node)
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194 right (w3-get-style-info 'right-volume node)
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195 pitch (w3-get-style-info 'pitch node)
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196 pitch-range (w3-get-style-info 'pitch-range node)
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197 stress (w3-get-style-info 'stress node)
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198 richness (w3-get-style-info 'richness node))
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199 (if (or family gain left right pitch pitch-range stress richness)
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200 (setq voice (dtk-personality-from-speech-style
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201 (make-dtk-speech-style :family (or family 'paul)
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202 :gain (or gain 5)
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203 :left-volume (or left 5)
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204 :right-volume (or right 5)
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205 :average-pitch (or pitch 5)
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206 :pitch-range (or pitch-range 5)
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207 :stress (or stress 5)
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208 :richness (or richness 5))))
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209 (setq voice nil))
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210 (or voice (car w3-active-voices)))))
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211
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212 (defun w3-make-face-emacs19 (name &optional doc-string temporary)
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213 "Defines and returns a new FACE described by DOC-STRING.
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214 If the face already exists, it is unmodified.
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215 If TEMPORARY is non-nil, this face will cease to exist if not in use."
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216 (make-face name))
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217
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218 (cond
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219 ((not (fboundp 'make-face))
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220 (fset 'w3-make-face 'ignore))
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221 (w3-running-xemacs
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222 (fset 'w3-make-face 'make-face))
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223 (t
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224 (fset 'w3-make-face 'w3-make-face-emacs19)))
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225
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226 (defsubst w3-face-for-element (node)
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227 (w3-get-all-face-info)
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228 (if (car w3-face-text-decoration)
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229 (set-font-style-by-keywords w3-face-font-spec
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230 (car w3-face-text-decoration)))
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231 (if w3-face-font-variant
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232 (set-font-style-by-keywords w3-face-font-spec
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233 (car w3-face-font-variant)))
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234 (setq w3-face-descr (list w3-face-font-spec
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235 (car w3-face-color)
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236 (car w3-face-background))
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237 w3-face-face (cdr-safe (assoc w3-face-descr w3-face-cache)))
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238 (if (or w3-face-face (not (or (car w3-face-color)
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239 (car w3-face-background)
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240 w3-face-font-spec)))
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241 nil ; Do nothing, we got it already
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242 (setq w3-face-face
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243 (w3-make-face (intern (format "w3-style-face-%05d" w3-face-index))
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244 "An Emacs-W3 face... don't edit by hand." t)
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245 w3-face-index (1+ w3-face-index))
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246 (if w3-face-font-spec
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247 (set-face-font w3-face-face w3-face-font-spec))
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248 (if (car w3-face-color)
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249 (set-face-foreground w3-face-face (car w3-face-color)))
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250 (if (car w3-face-background)
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251 (set-face-background w3-face-face (car w3-face-background)))
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252 ;;(set-face-background-pixmap w3-face-face w3-face-pixmap)
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253 (setq w3-face-cache (cons
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254 (cons w3-face-descr w3-face-face)
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255 w3-face-cache)))
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256 w3-face-face)
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257
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258 (defun w3-normalize-spaces (string)
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259 ;; nuke spaces in the middle
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260 (while (string-match "[ \t\r\n][ \r\t\n]+" string)
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261 (setq string (concat (substring string 0 (1+ (match-beginning 0)))
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262 (substring string (match-end 0)))))
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263
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264 ;; nuke spaces at the beginning
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265 (if (string-match "^[ \t\r\n]+" string)
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266 (setq string (substring string (match-end 0))))
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267
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268 ;; nuke spaces at the end
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269 (if (string-match "[ \t\n\r]+$" string)
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270 (setq string (substring string 0 (match-beginning 0))))
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271 string)
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272
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273 (defvar w3-bullets
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274 '((disc . ?*)
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275 (circle . ?o)
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276 (square . ?#)
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277 )
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278 "*An assoc list of unordered list types mapping to characters to use
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279 as the bullet character.")
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280
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281
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282 (defsubst w3-display-line-break (n)
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283 (if (or
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284 (memq (car w3-display-whitespace-stack) '(pre nowrap)) ; Been told
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285 (= w3-last-fill-pos (point))
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286 (> w3-last-fill-pos (point-max)))
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287 (if (/= (preceding-char) ?\n) (setq n (1+ n))) ; at least put one line in
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288 (let ((fill-column (max (1+ (length fill-prefix)) fill-column))
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289 width)
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290 (case (car w3-display-alignment-stack)
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291 (center
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292 (fill-region-as-paragraph w3-last-fill-pos (point))
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293 (center-region w3-last-fill-pos (point-max)))
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294 ((justify full)
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295 (fill-region-as-paragraph w3-last-fill-pos (point) t))
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296 (right
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297 (fill-region-as-paragraph w3-last-fill-pos (point))
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298 (goto-char w3-last-fill-pos)
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299 (catch 'fill-exit
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300 (while (re-search-forward ".$" nil t)
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301 (if (>= (setq width (current-column)) fill-column)
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302 nil ; already justified, or error
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303 (beginning-of-line)
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304 (insert-char ? (- fill-column width))
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305 (end-of-line)
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306 (if (eobp)
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307 (throw 'fill-exit t))
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308 (condition-case ()
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309 (forward-char 1)
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310 (error (throw 'fill-exit t))))))
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311 )
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312 (otherwise ; Default is left justification
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313 (fill-region-as-paragraph w3-last-fill-pos (point)))
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314 ))
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315 (setq n (1- n)))
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316 (setq w3-last-fill-pos (point-max))
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317 (insert (cond
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318 ((<= n 0) "")
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319 ((< n 10)
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320 (aref w3-line-breaks-vector n))
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321 (t
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322 (make-string n ?\n)))))
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323
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324 (defsubst w3-munge-line-breaks-p ()
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325 (eq (car w3-display-whitespace-stack) 'pre))
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326
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327 (defvar w3-display-nil-face (w3-make-face nil "Stub face... don't ask." t))
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328
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329 (defvar w3-scratch-start-point nil)
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330
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331 (defsubst w3-handle-string-content (string)
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332 (setq w3-scratch-start-point (point))
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333 (insert string)
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334 (if (w3-munge-line-breaks-p)
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335 (progn
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336 (goto-char w3-scratch-start-point)
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337 (if (not (search-forward "\n" nil t))
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338 (subst-char-in-region w3-scratch-start-point (point-max) ?\r ?\n)
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339 (subst-char-in-region w3-scratch-start-point (point-max) ?\r ? )))
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340 (goto-char w3-scratch-start-point)
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341 (while (re-search-forward
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342 " [ \t\n\r]+\\|[\t\n\r][ \t\n\r]*"
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343 nil 'move)
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344 (replace-match " "))
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345 (goto-char w3-scratch-start-point)
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346 (if (and (memq (preceding-char) '(? ?\t ?\r ?\n))
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347 (looking-at "[ \t\r\n]"))
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348 (delete-region (point)
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349 (progn
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350 (skip-chars-forward " \t\r\n")
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351 (point)))))
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352 (goto-char (point-max))
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353 (add-text-properties w3-scratch-start-point
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354 (point) (list 'face w3-active-faces 'duplicable t))
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355 (if (car w3-active-voices)
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356 (add-text-properties w3-scratch-start-point (point)
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357 (list 'personality (car w3-active-voices))))
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358 )
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359
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360 (defun w3-widget-echo (widget &rest ignore)
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361 (let ((href (widget-get widget 'href))
|
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|
362 (name (widget-get widget 'name))
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363 (text (buffer-substring (widget-get widget :from)
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|
364 (widget-get widget :to)))
|
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365 (title (widget-get widget 'title))
|
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|
366 (msg nil))
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|
367 (if href
|
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|
368 (setq href (url-truncate-url-for-viewing href)))
|
|
|
369 (if name
|
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|
370 (setq name (concat "anchor:" name)))
|
|
|
371 (case w3-echo-link
|
|
|
372 (url (or href title text name))
|
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|
373 (text (or text title href name))
|
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|
374 (title (or title text href name))
|
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|
375 (otherwise nil))))
|
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376
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|
377 (defun w3-follow-hyperlink (widget &rest ignore)
|
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|
378 (let* ((target (widget-get widget 'target))
|
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|
379 (href (widget-get widget 'href)))
|
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380 (if target (setq target (intern (downcase target))))
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381 (case target
|
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|
382 ((_blank external)
|
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383 (w3-fetch-other-frame href))
|
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384 (_top
|
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385 (delete-other-windows)
|
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|
386 (w3-fetch href))
|
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387 (otherwise
|
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388 (w3-fetch href)))))
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389
|
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|
390 (defun w3-balloon-help-callback (object &optional event)
|
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|
391 (let* ((widget (widget-at (extent-start-position object)))
|
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|
392 (href (and widget (widget-get widget 'href))))
|
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393 (if href
|
|
|
394 (url-truncate-url-for-viewing href)
|
|
|
395 nil)))
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396
|
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|
397
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|
398 ;; Various macros
|
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|
399 (eval-when-compile
|
|
|
400 (defmacro w3-expand-url (url)
|
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|
401 (`
|
|
|
402 (url-expand-file-name (, url)
|
|
|
403 (cdr-safe
|
|
|
404 (assoc
|
|
|
405 (cdr-safe
|
|
|
406 (assq 'base args)) w3-base-alist)))))
|
|
|
407
|
|
|
408 (defmacro w3-handle-empty-tag ()
|
|
|
409 (`
|
|
|
410 (progn
|
|
|
411 (push (cons tag args) w3-display-open-element-stack)
|
|
|
412 (push content content-stack)
|
|
|
413 (setq content nil))))
|
|
|
414
|
|
|
415 (defmacro w3-handle-content (node)
|
|
|
416 (`
|
|
|
417 (progn
|
|
|
418 (push (cons tag args) w3-display-open-element-stack)
|
|
|
419 (push content content-stack)
|
|
|
420 (setq content (nth 2 node)))))
|
|
|
421
|
|
|
422 (defmacro w3-display-handle-list-type ()
|
|
|
423 (`
|
|
|
424 (case (car break-style)
|
|
|
425 (list-item
|
|
|
426 (let ((list-style (w3-get-style-info 'list-style node))
|
|
|
427 (list-num (if (car w3-display-list-stack)
|
|
|
428 (incf (car w3-display-list-stack))
|
|
|
429 1))
|
|
|
430 (margin (1- (car left-margin-stack)))
|
|
|
431 (indent (w3-get-style-info 'text-indent node 0)))
|
|
|
432 (if (> indent 0)
|
|
|
433 (setq margin (+ margin indent))
|
|
|
434 (setq margin (max 0 (- margin indent))))
|
|
|
435 (beginning-of-line)
|
|
|
436 (case list-style
|
|
|
437 ((disc circle square)
|
|
|
438 (insert (format (format "%%%dc" margin)
|
|
|
439 (or (cdr-safe (assq list-style w3-bullets))
|
|
|
440 ?o))))
|
|
|
441 ((decimal lower-roman upper-roman lower-alpha upper-alpha)
|
|
|
442 (let ((x (case list-style
|
|
|
443 (lower-roman
|
|
|
444 (w3-decimal-to-roman list-num))
|
|
|
445 (upper-roman
|
|
|
446 (upcase
|
|
|
447 (w3-decimal-to-roman list-num)))
|
|
|
448 (lower-alpha
|
|
|
449 (w3-decimal-to-alpha list-num))
|
|
|
450 (upper-alpha
|
|
|
451 (upcase
|
|
|
452 (w3-decimal-to-alpha list-num)))
|
|
|
453 (otherwise
|
|
|
454 (int-to-string list-num)))))
|
|
|
455 (insert (format (format "%%%ds." margin) x))
|
|
|
456 )
|
|
|
457 )
|
|
|
458 (otherwise
|
|
|
459 (insert (w3-get-pad-string margin)))
|
|
|
460 )
|
|
|
461 )
|
|
|
462 )
|
|
|
463 (otherwise
|
|
|
464 (insert (w3-get-pad-string (+ (car left-margin-stack)
|
|
|
465 (w3-get-style-info 'text-indent node 0)))))
|
|
|
466 )
|
|
|
467 )
|
|
|
468 )
|
|
|
469
|
|
|
470 (defmacro w3-display-set-margins ()
|
|
|
471 (`
|
|
|
472 (progn
|
|
|
473 (push (+ (w3-get-style-info 'margin-left node 0)
|
|
|
474 (car left-margin-stack)) left-margin-stack)
|
|
|
475 (push (-
|
|
|
476 (car right-margin-stack)
|
|
|
477 (w3-get-style-info 'margin-right node 0)) right-margin-stack)
|
|
|
478 (setq fill-column (car right-margin-stack))
|
|
|
479 (w3-set-fill-prefix-length (car left-margin-stack))
|
|
|
480 (w3-display-handle-list-type))))
|
|
|
481
|
|
|
482 (defmacro w3-display-restore-margins ()
|
|
|
483 (`
|
|
|
484 (progn
|
|
|
485 (pop right-margin-stack)
|
|
|
486 (pop left-margin-stack))))
|
|
|
487
|
|
|
488 (defmacro w3-display-handle-break ()
|
|
|
489 (`
|
|
|
490 (case (car break-style)
|
|
|
491 (block ; Full paragraph break
|
|
|
492 (if (eq (cadr break-style) 'list-item)
|
|
|
493 (setf (cadr break-style) 'line)
|
|
|
494 (w3-display-line-break 1))
|
|
|
495 (w3-display-set-margins)
|
|
|
496 (push
|
|
|
497 (w3-get-style-info 'white-space node
|
|
|
498 (car w3-display-whitespace-stack))
|
|
|
499 w3-display-whitespace-stack)
|
|
|
500 (push
|
|
|
501 (or (w3-get-attribute 'align)
|
|
|
502 (w3-get-style-info 'text-align node
|
|
|
503 (car w3-display-alignment-stack)))
|
|
|
504 w3-display-alignment-stack)
|
|
|
505 (and w3-do-incremental-display (w3-pause)))
|
|
|
506 ((line list-item) ; Single line break
|
|
|
507 (w3-display-line-break 0)
|
|
|
508 (w3-display-set-margins)
|
|
|
509 (push
|
|
|
510 (w3-get-style-info 'white-space node
|
|
|
511 (car w3-display-whitespace-stack))
|
|
|
512 w3-display-whitespace-stack)
|
|
|
513 (push
|
|
|
514 (w3-get-style-info 'text-align node
|
|
|
515 (or (w3-get-attribute 'align)
|
|
|
516 (car w3-display-alignment-stack)))
|
|
|
517 w3-display-alignment-stack))
|
|
|
518 (otherwise ; Assume 'inline' rendering as default
|
|
|
519 nil))
|
|
|
520 )
|
|
|
521 )
|
|
|
522
|
|
|
523 (defmacro w3-display-handle-end-break ()
|
|
|
524 (`
|
|
|
525 (case (pop break-style)
|
|
|
526 (block ; Full paragraph break
|
|
|
527 (w3-display-line-break 1)
|
|
|
528 (w3-display-restore-margins)
|
|
|
529 (pop w3-display-whitespace-stack)
|
|
|
530 (pop w3-display-alignment-stack)
|
|
|
531 (and w3-do-incremental-display (w3-pause)))
|
|
|
532 ((line list-item) ; Single line break
|
|
|
533 (w3-display-restore-margins)
|
|
|
534 (w3-display-line-break 0)
|
|
|
535 (pop w3-display-whitespace-stack)
|
|
|
536 (pop w3-display-alignment-stack))
|
|
|
537 (otherwise ; Assume 'inline' rendering as default
|
|
|
538 nil))
|
|
|
539 )
|
|
|
540 )
|
|
|
541 )
|
|
|
542
|
|
|
543 ;; <link> handling
|
|
|
544 (defun w3-parse-link (args)
|
|
|
545 (let* ((type (if (w3-get-attribute 'rel) 'rel 'rev))
|
|
|
546 (desc (w3-get-attribute type))
|
|
|
547 (dc-desc (and desc (downcase desc))) ; canonical case
|
|
|
548 (dest (w3-get-attribute 'href))
|
|
|
549 (plist (alist-to-plist args))
|
|
|
550 (node-1 (assq type w3-current-links))
|
|
|
551 (node-2 (and node-1 desc (or (assoc desc
|
|
|
552 (cdr node-1))
|
|
|
553 (assoc dc-desc
|
|
|
554 (cdr node-1)))))
|
|
|
555 )
|
|
|
556 ;; Canonicalize the case of link types we may look for
|
|
|
557 ;; specifically (toolbar etc.) since that's done with
|
|
|
558 ;; assoc. See `w3-mail-document-author' and
|
|
|
559 ;; `w3-link-toolbar', at least.
|
|
|
560 (if (member dc-desc w3-defined-link-types)
|
|
|
561 (setq desc dc-desc))
|
|
|
562 (if dest ; ignore if HREF missing
|
|
|
563 (cond
|
|
|
564 (node-2 ; Add to old value
|
|
|
565 (setcdr node-2 (cons plist (cdr node-2))))
|
|
|
566 (node-1 ; first rel/rev
|
|
|
567 (setcdr node-1 (cons (cons desc (list plist))
|
|
|
568 (cdr node-1))))
|
|
|
569 (t (setq w3-current-links
|
|
|
570 (cons (cons type (list (cons desc (list plist))))
|
|
|
571 w3-current-links)))))
|
|
|
572 (setq desc (and desc (intern dc-desc)))
|
|
|
573 (case desc
|
|
|
574 ((style stylesheet)
|
|
|
575 (w3-handle-style args))
|
|
|
576 (otherwise
|
|
|
577 )
|
|
|
578 )
|
|
|
579 )
|
|
|
580 )
|
|
|
581
|
|
|
582
|
|
|
583 ;; Image handling
|
|
|
584 (defun w3-maybe-start-image-download (widget)
|
|
|
585 (let* ((src (widget-get widget 'src))
|
|
|
586 (cached-glyph (w3-image-cached-p src)))
|
|
|
587 (if (and cached-glyph (widget-glyphp cached-glyph))
|
|
|
588 (setq w3-image-widgets-waiting (cons widget w3-image-widgets-waiting))
|
|
|
589 (cond
|
|
|
590 ((or w3-delay-image-loads ; Delaying images
|
|
|
591 (not (fboundp 'valid-specifier-domain-p)) ; Can't do images
|
|
|
592 (eq (device-type) 'tty)) ; Why bother?
|
|
|
593 (w3-add-delayed-graphic widget))
|
|
|
594 ((not (w3-image-loadable-p src nil)) ; Hey, we can't load it!
|
|
|
595 (w3-warn 'images (format "Skipping image %s" (url-basepath src t)))
|
|
|
596 (w3-add-delayed-graphic widget))
|
|
|
597 (t ; Grab the images
|
|
|
598 (let (
|
|
|
599 (url-request-method "GET")
|
|
|
600 (old-asynch url-be-asynchronous)
|
|
|
601 (url-request-data nil)
|
|
|
602 (url-request-extra-headers nil)
|
|
|
603 (url-source t)
|
|
|
604 (url-mime-accept-string (substring
|
|
|
605 (mapconcat
|
|
|
606 (function
|
|
|
607 (lambda (x)
|
|
|
608 (if x
|
|
|
609 (concat (car x) ",")
|
|
|
610 "")))
|
|
|
611 w3-allowed-image-types "")
|
|
|
612 0 -1))
|
|
|
613 (url-working-buffer (generate-new-buffer-name " *W3GRAPH*")))
|
|
|
614 (setq-default url-be-asynchronous t)
|
|
|
615 (setq w3-graphics-list (cons (cons src (make-glyph))
|
|
|
616 w3-graphics-list))
|
|
|
617 (save-excursion
|
|
|
618 (set-buffer (get-buffer-create url-working-buffer))
|
|
|
619 (setq url-current-callback-data (list widget)
|
|
|
620 url-be-asynchronous t
|
|
|
621 url-current-callback-func 'w3-finalize-image-download)
|
|
|
622 (url-retrieve src))
|
|
|
623 (setq-default url-be-asynchronous old-asynch)))))))
|
|
|
624
|
|
|
625 (defun w3-finalize-image-download (widget)
|
|
|
626 (let ((glyph nil)
|
|
|
627 (url (widget-get widget 'src))
|
|
|
628 (node nil)
|
|
|
629 (buffer (widget-get widget 'buffer)))
|
|
|
630 (message "Enhancing image...")
|
|
|
631 (setq glyph (image-normalize (cdr-safe (assoc url-current-mime-type
|
|
|
632 w3-image-mappings))
|
|
|
633 (buffer-string)))
|
|
|
634 (message "Enhancing image... done")
|
|
|
635 (kill-buffer (current-buffer))
|
|
|
636 (cond
|
|
|
637 ((w3-image-invalid-glyph-p glyph)
|
|
|
638 (setq glyph nil)
|
|
|
639 (w3-warn 'image (format "Reading of %s failed." url)))
|
|
|
640 ((eq (aref glyph 0) 'xbm)
|
|
|
641 (let ((temp-fname (url-generate-unique-filename "%s.xbm")))
|
|
|
642 (save-excursion
|
|
|
643 (set-buffer (generate-new-buffer " *xbm-garbage*"))
|
|
|
644 (erase-buffer)
|
|
|
645 (insert (aref glyph 2))
|
|
|
646 (setq glyph temp-fname)
|
|
|
647 (write-region (point-min) (point-max) temp-fname)
|
|
|
648 (kill-buffer (current-buffer)))
|
|
|
649 (setq glyph (make-glyph (list (cons 'x glyph))))
|
|
|
650 (condition-case ()
|
|
|
651 (delete-file temp-fname)
|
|
|
652 (error nil))))
|
|
|
653 (t
|
|
|
654 (setq glyph (make-glyph glyph))))
|
|
|
655 (setq node (assoc url w3-graphics-list))
|
|
|
656 (cond
|
|
|
657 ((and node glyph)
|
|
|
658 (set-glyph-image (cdr node) (glyph-image glyph)))
|
|
|
659 (glyph
|
|
|
660 (setq w3-graphics-list (cons (cons url glyph) w3-graphics-list)))
|
|
|
661 (t nil))
|
|
|
662
|
|
|
663 (if (and (buffer-name buffer) ; Dest. buffer exists
|
|
|
664 (widget-glyphp glyph)) ; got a valid glyph
|
|
|
665 (save-excursion
|
|
|
666 (set-buffer buffer)
|
|
|
667 (if (eq major-mode 'w3-mode)
|
|
|
668 (widget-value-set widget glyph)
|
|
|
669 (setq w3-image-widgets-waiting
|
|
|
670 (cons widget w3-image-widgets-waiting)))))))
|
|
|
671
|
|
|
672 (defmacro w3-node-visible-p ()
|
|
|
673 (` (not (eq (car break-style) 'none))))
|
|
|
674
|
|
|
675 (defmacro w3-handle-image ()
|
|
|
676 (`
|
|
|
677 (let* ((height (w3-get-attribute 'height))
|
|
|
678 (width (w3-get-attribute 'width))
|
|
|
679 (src (or (w3-get-attribute 'src) "Error Image"))
|
|
|
680 (our-alt (cond
|
|
|
681 ((null w3-auto-image-alt) "")
|
|
|
682 ((eq t w3-auto-image-alt)
|
|
|
683 (concat "[IMAGE(" (url-basepath src t) ")] "))
|
|
|
684 ((stringp w3-auto-image-alt)
|
|
|
685 (format w3-auto-image-alt (url-basepath src t)))))
|
|
|
686 (alt (or (w3-get-attribute 'alt) our-alt))
|
|
|
687 (ismap (and (assq 'ismap args) 'ismap))
|
|
|
688 (usemap (w3-get-attribute 'usemap))
|
|
|
689 (base (w3-get-attribute 'base))
|
|
|
690 (href (and hyperlink-info (widget-get (cadr hyperlink-info) 'href)))
|
|
|
691 (widget nil)
|
|
|
692 (align (or (w3-get-attribute 'align)
|
|
|
693 (w3-get-style-info 'vertical-align node))))
|
|
|
694 (setq widget (widget-create 'image
|
|
|
695 :value-face w3-active-faces
|
|
|
696 'src src ; Where to load the image from
|
|
|
697 'alt alt ; Textual replacement
|
|
|
698 'ismap ismap ; Is it a server-side map?
|
|
|
699 'usemap usemap ; Is it a client-side map?
|
|
|
700 'href href ; Hyperlink destination
|
|
|
701 ))
|
|
|
702 (widget-put widget 'buffer (current-buffer))
|
|
|
703 (w3-maybe-start-image-download widget)
|
|
|
704 (goto-char (point-max)))))
|
|
|
705
|
|
|
706 ;; The table handling
|
|
|
707
|
|
|
708 (defvar w3-display-table-cut-words-p nil
|
|
|
709 "*Whether to cut words that are oversized in table cells")
|
|
|
710
|
|
|
711 (defvar w3-display-table-force-borders nil
|
|
|
712 "*Whether to always draw table borders")
|
|
|
713
|
|
|
714 (defun w3-display-table-cut ()
|
|
|
715 (save-excursion
|
|
|
716 (goto-char (point-min))
|
|
|
717 (let ((offset -1))
|
|
|
718 (while (< offset 0)
|
|
|
719 (end-of-line)
|
|
|
720 (setq offset (- fill-column (current-column)))
|
|
|
721 (cond ((< offset 0)
|
|
|
722 (condition-case nil
|
|
|
723 (progn (forward-char offset)
|
|
|
724 (insert ?\n))
|
|
|
725 (error (setq offset 0))))
|
|
|
726 ((not (eobp))
|
|
|
727 (forward-line 1)
|
|
|
728 (setq offset -1)))))))
|
|
|
729
|
|
|
730
|
|
|
731 (defun w3-display-fix-widgets ()
|
|
|
732 ;; Make markers belong to the right buffer
|
|
|
733 (save-excursion
|
|
|
734 (let ((st (point-min))
|
|
|
735 (nd nil)
|
|
|
736 (widget nil) parent
|
|
|
737 (to-marker nil)
|
|
|
738 (from-marker nil))
|
|
|
739 (while (setq st (next-single-property-change st 'button))
|
|
|
740 (setq nd (or (next-single-property-change st 'button) (point-max))
|
|
|
741 widget (widget-at st)
|
|
|
742 to-marker (and widget (widget-get widget :to))
|
|
|
743 from-marker (and widget (widget-get widget :from))
|
|
|
744 parent (and widget (widget-get widget :parent))
|
|
|
745 )
|
|
|
746 (if (not widget)
|
|
|
747 nil
|
|
|
748 (widget-put widget :from (set-marker (make-marker) st))
|
|
|
749 (widget-put widget :to (set-marker (make-marker) nd))
|
|
|
750 (if (not parent)
|
|
|
751 nil
|
|
|
752 (widget-put parent :from (set-marker (make-marker) st))
|
|
|
753 (widget-put parent :to (set-marker (make-marker) nd))))
|
|
|
754 (if (condition-case ()
|
|
|
755 (get-text-property (1+ nd) 'button)
|
|
|
756 (error nil))
|
|
|
757 (setq st nd)
|
|
|
758 (setq st (min (point-max) (1+ nd))))))))
|
|
|
759
|
|
|
760 (defun w3-size-of-tree (tree minmax)
|
|
|
761 (save-excursion
|
|
|
762 (save-restriction
|
|
|
763 (narrow-to-region (point) (point))
|
|
|
764 ;; XXX fill-column set to 1 fails when fill-prefix is set
|
|
|
765 ;; XXX setting fill-column at all isn't really right
|
|
|
766 ;; for example <hr>s shouldn't be especially wide
|
|
|
767 ;; we should set a flag that makes w3 never wrap a line
|
|
|
768 (let ((fill-column (cond ((eq minmax 'min)
|
|
|
769 3)
|
|
|
770 ((eq minmax 'max)
|
|
|
771 400)))
|
|
|
772 (fill-prefix "")
|
|
|
773 (w3-last-fill-pos (point-min))
|
|
|
774 a retval
|
|
|
775 (w3-do-incremental-display nil)
|
|
|
776 (hr-regexp (concat "^"
|
|
|
777 (regexp-quote
|
|
|
778 (make-string 5 w3-horizontal-rule-char))
|
|
|
779 "*$"))
|
|
|
780 )
|
|
|
781 ;;(push 'left w3-display-alignment-stack)
|
|
|
782 (push (if (eq minmax 'max) 'nowrap) w3-display-whitespace-stack)
|
|
|
783 (while tree
|
|
|
784 (push (cons '*td args) w3-display-open-element-stack)
|
|
|
785 (w3-display-node (pop tree)))
|
|
|
786 (pop w3-display-whitespace-stack)
|
|
|
787 (goto-char (point-min))
|
|
|
788 (while (re-search-forward hr-regexp nil t)
|
|
|
789 (replace-match "" t t))
|
|
|
790 (goto-char (point-min))
|
|
|
791 (while (not (eobp))
|
|
|
792 ;; loop invariant: at beginning of uncounted line
|
|
|
793 (end-of-line)
|
|
|
794 (skip-chars-backward " ")
|
|
|
795 (setq retval (cons (current-column)
|
|
|
796 retval))
|
|
|
797 (beginning-of-line 2))
|
|
|
798 (if (= (point-min) (point-max))
|
|
|
799 (setq retval 0)
|
|
|
800 (setq retval (apply 'max (cons 0 retval))))
|
|
|
801 (delete-region (point-min) (point-max))
|
|
|
802 retval))))
|
|
|
803
|
|
|
804 (defun w3-display-table-dimensions (node)
|
|
|
805 ;; fill-column sets maximum width
|
|
|
806 (let (min-vector
|
|
|
807 max-vector
|
|
|
808 rows cols
|
|
|
809 ;;(w3-form-elements (and (boundp 'w3-form-elements) w3-form-elements))
|
|
|
810 (table-info (assq 'w3-table-info (cadr node))))
|
|
|
811
|
|
|
812 (if table-info
|
|
|
813 (setq min-vector (nth 1 table-info)
|
|
|
814 max-vector (nth 2 table-info)
|
|
|
815 rows (nth 3 table-info)
|
|
|
816 cols (nth 4 table-info))
|
|
|
817
|
|
|
818 (push (cons '*table-autolayout args) w3-display-open-element-stack)
|
|
|
819 (let (content
|
|
|
820 cur
|
|
|
821 (table-spans (list nil)) ; don't make this '(nil)
|
|
|
822 ptr
|
|
|
823 col
|
|
|
824 constraints
|
|
|
825
|
|
|
826 colspan rowspan min max)
|
|
|
827 (setq content (nth 2 node))
|
|
|
828 (setq rows 0 cols 0)
|
|
|
829 (while content
|
|
|
830 (setq cur (pop content))
|
|
|
831 (if (stringp cur)
|
|
|
832 nil
|
|
|
833 (case (car cur)
|
|
|
834 (tr
|
|
|
835 (setq col 0)
|
|
|
836 (setq rows (1+ rows))
|
|
|
837 (setq ptr table-spans)
|
|
|
838 (mapcar
|
|
|
839 (function
|
|
|
840 (lambda (td)
|
|
|
841 (setq colspan (string-to-int (or (cdr-safe (assq 'colspan (nth 1 td))) "1"))
|
|
|
842 rowspan (string-to-int (or (cdr-safe (assq 'rowspan (nth 1 td))) "1"))
|
|
|
843 min (w3-size-of-tree (nth 2 td) 'min)
|
|
|
844 max (w3-size-of-tree (nth 2 td) 'max)
|
|
|
845 )
|
|
|
846 (while (eq (car-safe (car-safe (cdr ptr))) col)
|
|
|
847 (setq col (+ col (cdr (cdr (car (cdr ptr))))))
|
|
|
848 (if (= 0 (decf (car (cdr (car (cdr ptr))))))
|
|
|
849 (pop (cdr ptr))
|
|
|
850 (setq ptr (cdr ptr))))
|
|
|
851 (push (list col colspan min max)
|
|
|
852 constraints)
|
|
|
853 (if (= rowspan 1) nil
|
|
|
854 (push (cons col (cons (1- rowspan) colspan)) (cdr ptr))
|
|
|
855 (setq ptr (cdr ptr)))
|
|
|
856 (setq col (+ col colspan))
|
|
|
857 ))
|
|
|
858 (nth 2 cur))
|
|
|
859 (while (cdr ptr)
|
|
|
860 (if (= 0 (decf (car (cdr (car (cdr ptr))))))
|
|
|
861 (pop (cdr ptr))
|
|
|
862 (setq ptr (cdr ptr))))
|
|
|
863 (setq cols (max cols col))
|
|
|
864 )
|
|
|
865 (caption
|
|
|
866 nil)
|
|
|
867 (otherwise
|
|
|
868 (setq content (nth 2 cur)))
|
|
|
869 )
|
|
|
870 )
|
|
|
871 )
|
|
|
872 (setq constraints (sort constraints
|
|
|
873 (function
|
|
|
874 (lambda (a b)
|
|
|
875 (< (cadr a) (cadr b)))))
|
|
|
876 min-vector (make-vector cols 0)
|
|
|
877 max-vector (make-vector cols 0))
|
|
|
878 (let (start end i mincellwidth maxcellwidth)
|
|
|
879 (mapcar (function (lambda (c)
|
|
|
880 (cond ((= (cadr c) 1)
|
|
|
881 (aset min-vector (car c)
|
|
|
882 (max (aref min-vector (car c))
|
|
|
883 (nth 2 c)))
|
|
|
884 (aset max-vector (car c)
|
|
|
885 (max (aref max-vector (car c))
|
|
|
886 (nth 3 c))))
|
|
|
887 (t
|
|
|
888 (setq start (car c)
|
|
|
889 end (+ (car c) (cadr c))
|
|
|
890 mincellwidth 0
|
|
|
891 maxcellwidth 0
|
|
|
892 i start)
|
|
|
893 (while (< i end)
|
|
|
894 (setq mincellwidth (+ mincellwidth
|
|
|
895 (aref min-vector i))
|
|
|
896 maxcellwidth (+
|
|
|
897 maxcellwidth
|
|
|
898 (aref max-vector i))
|
|
|
899 i (1+ i)))
|
|
|
900 (setq i start)
|
|
|
901 (if (= mincellwidth 0)
|
|
|
902 ;; if existing width is 0 divide evenly
|
|
|
903 (while (< i end)
|
|
|
904 (aset min-vector i
|
|
|
905 (/ (nth 2 c) (cadr c)))
|
|
|
906 (aset max-vector i
|
|
|
907 (/ (nth 3 c) (cadr c)))
|
|
|
908 (setq i (1+ i)))
|
|
|
909 ;; otherwise weight it by existing widths
|
|
|
910 (while (< i end)
|
|
|
911 (aset min-vector i
|
|
|
912 (max (aref min-vector i)
|
|
|
913 (/ (* (nth 2 c)
|
|
|
914 (aref min-vector i))
|
|
|
915 mincellwidth)))
|
|
|
916 (aset max-vector i
|
|
|
917 (max (aref max-vector i)
|
|
|
918 (/ (* (nth 3 c)
|
|
|
919 (aref max-vector i))
|
|
|
920 maxcellwidth)))
|
|
|
921 (setq i (1+ i))))
|
|
|
922 ))))
|
|
|
923 constraints)))
|
|
|
924 (push (cons 'w3-table-info
|
|
|
925 (list min-vector max-vector rows cols))
|
|
|
926 (cadr node))
|
|
|
927 (pop w3-display-open-element-stack))
|
|
|
928
|
|
|
929 (let (max-width
|
|
|
930 min-width
|
|
|
931 ret-vector
|
|
|
932 col
|
|
|
933 )
|
|
|
934
|
|
|
935
|
|
|
936 (setq max-width (apply '+ (append max-vector (list cols 1))))
|
|
|
937 (setq min-width (apply '+ (append min-vector (list cols 1))))
|
|
|
938
|
|
|
939 ;; the comments in the cond are excerpts from rfc1942 itself
|
|
|
940 (cond
|
|
|
941 ;; 1. The minimum table width is equal to or wider than the available
|
|
|
942 ;; space. In this case, assign the minimum widths and allow the
|
|
|
943 ;; user to scroll horizontally. For conversion to braille, it will
|
|
|
944 ;; be necessary to replace the cells by references to notes
|
|
|
945 ;; containing their full content. By convention these appear
|
|
|
946 ;; before the table.
|
|
|
947 ((>= min-width fill-column)
|
|
|
948 (setq ret-vector min-vector))
|
|
|
949
|
|
|
950 ;; 2. The maximum table width fits within the available space. In
|
|
|
951 ;; this case, set the columns to their maximum widths.
|
|
|
952 ((<= max-width fill-column)
|
|
|
953 (setq ret-vector max-vector))
|
|
|
954
|
|
|
955 ;; 3. The maximum width of the table is greater than the available
|
|
|
956 ;; space, but the minimum table width is smaller. In this case,
|
|
|
957 ;; find the difference between the available space and the minimum
|
|
|
958 ;; table width, lets call it W. Lets also call D the difference
|
|
|
959 ;; between maximum and minimum width of the table.
|
|
|
960
|
|
|
961 ;; For each column, let d be the difference between maximum and
|
|
|
962 ;; minimum width of that column. Now set the column's width to the
|
|
|
963 ;; minimum width plus d times W over D. This makes columns with
|
|
|
964 ;; large differences between minimum and maximum widths wider than
|
|
|
965 ;; columns with smaller differences.
|
|
|
966 (t
|
|
|
967 (setq ret-vector (make-vector cols 0))
|
|
|
968 (let ((W (- fill-column min-width))
|
|
|
969 (D (- max-width min-width))
|
|
|
970 d extra)
|
|
|
971 (setq col 0)
|
|
|
972 (while (< col (length ret-vector))
|
|
|
973 (setq d (- (aref max-vector col)
|
|
|
974 (aref min-vector col)))
|
|
|
975 (aset ret-vector col
|
|
|
976 (+ (aref min-vector col)
|
|
|
977 (/ (* d W) D)))
|
|
|
978 (setq col (1+ col)))
|
|
|
979 (setq extra (- fill-column
|
|
|
980 (apply '+ (append ret-vector
|
|
|
981 (list (length ret-vector) 1))))
|
|
|
982 col 0)
|
|
|
983 (while (and (< col (length ret-vector)) (> extra 0))
|
|
|
984 (if (= 1 (- (aref max-vector col) (aref ret-vector col) ))
|
|
|
985 (aset ret-vector col (1+ (aref ret-vector col))))
|
|
|
986 (setq extra (1- extra)
|
|
|
987 col (1+ col)))
|
|
|
988 )))
|
|
|
989 (list rows cols ret-vector))))
|
|
|
990
|
|
|
991 (defvar w3-table-ascii-border-chars
|
|
|
992 [? ? ? ?/ ? ?- ?\\ ?- ? ?\\ ?| ?| ?/ ?- ?| ?-]
|
|
|
993 "Vector of ascii characters to use to draw table borders.
|
|
|
994 w3-table-unhack-border-chars uses this to restore w3-table-border-chars.")
|
|
|
995
|
|
|
996 (defvar w3-table-border-chars w3-table-ascii-border-chars
|
|
|
997 "Vector of characters to use to draw table borders.
|
|
|
998 If you set this you should set w3-table-ascii-border-chars to the same value
|
|
|
999 so that w3-table-unhack-borders can restore the value if necessary.
|
|
|
1000
|
|
|
1001 A reasonable value is [? ? ? ?/ ? ?- ?\\\\ ?^ ? ?\\\\ ?| ?< ?/ ?- ?> ?-]
|
|
|
1002 Though i recommend replacing the ^ with - and the < and > with |")
|
|
|
1003
|
|
|
1004 (defsubst w3-table-lookup-char (l u r b)
|
|
|
1005 (aref w3-table-border-chars (logior (if l 1 0)
|
|
|
1006 (if u 2 0)
|
|
|
1007 (if r 4 0)
|
|
|
1008 (if b 8 0))))
|
|
|
1009
|
|
|
1010 (defun w3-table-hack-borders nil
|
|
|
1011 "Try to find the best set of characters to draw table borders with.
|
|
|
1012 I definitely recommend trying this on X.
|
|
|
1013 On a console, this can trigger some Emacs display bugs.
|
|
|
1014
|
|
|
1015 I haven't tried this on XEmacs or any window-system other than X."
|
|
|
1016 (interactive)
|
|
|
1017 (case (device-type)
|
|
|
1018 (x
|
|
|
1019 (let ((id (or (and (find-face 'w3-table-hack-x-face)
|
|
|
1020 (face-id 'w3-table-hack-x-face))
|
|
|
1021 (progn
|
|
|
1022 (make-face 'w3-table-hack-x-face)
|
|
|
1023 (set-face-font 'w3-table-hack-x-face
|
|
|
1024 (make-font :family "terminal"))
|
|
|
1025 (face-id 'w3-table-hack-x-face)))))
|
|
|
1026 (if (not (face-differs-from-default-p 'w3-table-hack-x-face))
|
|
|
1027 nil
|
|
|
1028 (aset standard-display-table 1 (vector (+ (* 256 id) ?l)))
|
|
|
1029 (aset standard-display-table 2 (vector (+ (* 256 id) ?q)))
|
|
|
1030 (aset standard-display-table 3 (vector (+ (* 256 id) ?k)))
|
|
|
1031 (aset standard-display-table 4 (vector (+ (* 256 id) ?t)))
|
|
|
1032 (aset standard-display-table 5 (vector (+ (* 256 id) ?n)))
|
|
|
1033 (aset standard-display-table 6 (vector (+ (* 256 id) ?u)))
|
|
|
1034 (aset standard-display-table 7 (vector (+ (* 256 id) ?m)))
|
|
|
1035 (aset standard-display-table 8 (vector (+ (* 256 id) ?x)))
|
|
|
1036 (aset standard-display-table 11 (vector (+ (* 256 id) ?j)))
|
|
|
1037 (aset standard-display-table 14 (vector (+ (* 256 id) ?v)))
|
|
|
1038 (aset standard-display-table 15 (vector (+ (* 256 id) ?w)))
|
|
|
1039 (setq w3-table-border-chars [? ? ? 11 ? 2 7 14 ? 3 8 6 1 15 4 5])
|
|
|
1040 (setq w3-horizontal-rule-char 2))))
|
|
|
1041 (tty
|
|
|
1042 (standard-display-g1 1 108) ; ulcorner
|
|
|
1043 (standard-display-g1 2 113) ; hline
|
|
|
1044 (standard-display-g1 3 107) ; urcorner
|
|
|
1045 (standard-display-g1 4 116) ; leftt
|
|
|
1046 (standard-display-g1 5 110) ; intersection
|
|
|
1047 (standard-display-g1 6 117) ; rightt
|
|
|
1048 (standard-display-g1 7 109) ; llcorner
|
|
|
1049 (standard-display-g1 8 120) ; vline
|
|
|
1050 (standard-display-g1 11 106) ; lrcorner
|
|
|
1051 (standard-display-g1 14 118) ; upt
|
|
|
1052 (standard-display-g1 15 119) ; downt
|
|
|
1053 (setq w3-table-border-chars [? ? ? 11 ? 2 7 14 ? 3 8 6 1 15 4 5])
|
|
|
1054 (setq w3-horizontal-rule-char 2))
|
|
|
1055 (otherwise
|
|
|
1056 (error "Unknown window-system, can't do any better than ascii borders")))
|
|
|
1057 )
|
|
|
1058
|
|
|
1059 (defun w3-table-unhack-borders nil
|
|
|
1060 (interactive)
|
|
|
1061 (w3-table-excise-hack (buffer-list))
|
|
|
1062 (standard-display-default 1 15)
|
|
|
1063 (setq w3-table-border-chars w3-table-ascii-border-chars)
|
|
|
1064 (setq w3-horizontal-rule-char ?-))
|
|
|
1065
|
|
|
1066 (defun w3-table-excise-hack (buffs)
|
|
|
1067 "Replace hacked characters with ascii characters in buffers BUFFS.
|
|
|
1068 Should be run before restoring w3-table-border-chars to ascii characters."
|
|
|
1069 (interactive (list (list (current-buffer))))
|
|
|
1070 (let ((inhibit-read-only t)
|
|
|
1071 (tr (make-string 16 ? ))
|
|
|
1072 (i 0))
|
|
|
1073 (while (< i (length tr))
|
|
|
1074 (aset tr i i)
|
|
|
1075 (setq i (1+ i)))
|
|
|
1076 (setq i 0)
|
|
|
1077 (while (< i (length w3-table-border-chars))
|
|
|
1078 (if (< (aref w3-table-border-chars i) 16)
|
|
|
1079 (aset tr
|
|
|
1080 (aref w3-table-border-chars i)
|
|
|
1081 (aref w3-table-ascii-border-chars i)))
|
|
|
1082 (setq i (1+ i)))
|
|
|
1083 (mapcar (function (lambda (buf)
|
|
|
1084 (save-excursion
|
|
|
1085 (set-buffer buf)
|
|
|
1086 (if (eq major-mode 'w3-mode)
|
|
|
1087 (translate-region (point-min)
|
|
|
1088 (point-max)
|
|
|
1089 tr)))))
|
|
|
1090 buffs)))
|
|
|
1091
|
|
|
1092 (defun w3-display-table (node)
|
|
|
1093 (let* ((dimensions (w3-display-table-dimensions node))
|
|
|
1094 (num-cols (max (cadr dimensions) 1))
|
|
|
1095 (num-rows (max (car dimensions) 1))
|
|
|
1096 (column-dimensions (caddr dimensions))
|
|
|
1097 (table-width (apply '+ (append column-dimensions (list num-cols 1)))))
|
|
|
1098 (cond
|
|
|
1099 ((or (<= (cadr dimensions) 0) (<= (car dimensions) 0))
|
|
|
1100 ;; We have an invalid table
|
|
|
1101 nil)
|
|
|
1102 ((assq '*table-autolayout w3-display-open-element-stack)
|
|
|
1103 ;; don't bother displaying the table if all we really need is the size
|
|
|
1104 (progn (insert-char ?T table-width) (insert "\n")))
|
|
|
1105 (t
|
|
|
1106 (let* ((tag (nth 0 node))
|
|
|
1107 (args (nth 1 node))
|
|
|
1108 (border-node (cdr-safe (assq 'border args)))
|
|
|
1109 (border (or w3-display-table-force-borders
|
|
|
1110 (and border-node
|
|
|
1111 (or (/= 0 (string-to-int border-node))
|
|
|
1112 (string= "border" border-node)))))
|
|
|
1113 (w3-table-border-chars
|
|
|
1114 (if border
|
|
|
1115 w3-table-border-chars
|
|
|
1116 (make-vector (length w3-table-border-chars) ? )))
|
|
|
1117 valign align
|
|
|
1118 (content (nth 2 node))
|
|
|
1119 (avgwidth (/ (- fill-column num-cols num-cols) num-cols))
|
|
|
1120 (formatted-cols (make-vector num-cols nil))
|
|
|
1121 (table-rowspans (make-vector num-cols 0))
|
|
|
1122 (table-colspans (make-vector num-cols 1))
|
|
|
1123 (prev-colspans (make-vector num-cols 0))
|
|
|
1124 (prev-rowspans (make-vector num-cols 0))
|
|
|
1125 (table-colwidth (make-vector num-cols 0))
|
|
|
1126 (fill-prefix "")
|
|
|
1127 (height nil)
|
|
|
1128 (cur-height nil)
|
|
|
1129 (cols nil)
|
|
|
1130 (rows nil)
|
|
|
1131 (row 0)
|
|
|
1132 (this-rectangle nil)
|
|
|
1133 (i 0)
|
|
|
1134 )
|
|
|
1135
|
|
|
1136 (push (cons tag args) w3-display-open-element-stack)
|
|
|
1137
|
|
|
1138 (if (memq 'nowrap w3-display-whitespace-stack)
|
|
|
1139 (setq fill-prefix "")
|
|
|
1140 (case (car w3-display-alignment-stack)
|
|
|
1141 (center
|
|
|
1142 (w3-set-fill-prefix-length
|
|
|
1143 (max 0 (/ (- fill-column table-width) 2))))
|
|
|
1144 (right
|
|
|
1145 (w3-set-fill-prefix-length
|
|
|
1146 (max 0 (- fill-column table-width))))
|
|
|
1147 (t
|
|
|
1148 (setq fill-prefix ""))))
|
|
|
1149 (while content
|
|
|
1150 (case (caar content)
|
|
|
1151 (tr
|
|
|
1152 (setq w3-display-css-properties (css-get
|
|
|
1153 (nth 0 (car content))
|
|
|
1154 (nth 1 (car content))
|
|
|
1155 w3-current-stylesheet
|
|
|
1156 w3-display-open-element-stack))
|
|
|
1157 (setq cols (nth 2 (car content))
|
|
|
1158 valign (or (cdr-safe (assq 'valign (nth 1 (car content))))
|
|
|
1159 (w3-get-style-info 'vertical-align node))
|
|
|
1160 align (or (cdr-safe (assq 'align (nth 1 (car content))))
|
|
|
1161 (w3-get-style-info 'text-align node))
|
|
|
1162 content (cdr content)
|
|
|
1163 row (1+ row))
|
|
|
1164 (if (and valign (stringp valign))
|
|
|
1165 (setq valign (intern (downcase valign))))
|
|
|
1166 ;; this is iffy
|
|
|
1167 ;;(if align (push (intern (downcase align)) w3-display-alignment-stack))
|
|
|
1168 (save-excursion
|
|
|
1169 (save-restriction
|
|
|
1170 (narrow-to-region (point) (point))
|
|
|
1171 (setq fill-column avgwidth
|
|
|
1172 inhibit-read-only t
|
|
|
1173 w3-last-fill-pos (point-min)
|
|
|
1174 i 0)
|
|
|
1175 ;; skip over columns that have leftover content
|
|
|
1176 (while (and (< i num-cols)
|
|
|
1177 (/= 0 (aref table-rowspans i)))
|
|
|
1178 (setq i (+ i (max 1 (aref table-colspans i)))))
|
|
|
1179 (while cols
|
|
|
1180 (let* ((node (car cols))
|
|
|
1181 (attributes (nth 1 node))
|
|
|
1182 (colspan (string-to-int
|
|
|
1183 (or (cdr-safe (assq 'colspan attributes))
|
|
|
1184 "1")))
|
|
|
1185 (rowspan (string-to-int
|
|
|
1186 (or (cdr-safe (assq 'rowspan attributes))
|
|
|
1187 "1")))
|
|
|
1188 fill-column column-width
|
|
|
1189 (fill-prefix "")
|
|
|
1190 (w3-do-incremental-display nil)
|
|
|
1191 (indent-tabs-mode nil)
|
|
|
1192 c e
|
|
|
1193 )
|
|
|
1194
|
|
|
1195 (aset table-colspans i colspan)
|
|
|
1196 (aset table-rowspans i rowspan)
|
|
|
1197
|
|
|
1198 (setq fill-column 0)
|
|
|
1199 (setq c i
|
|
|
1200 e (+ i colspan))
|
|
|
1201 (while (< c e)
|
|
|
1202 (setq fill-column (+ fill-column
|
|
|
1203 (aref column-dimensions c)
|
|
|
1204 1)
|
|
|
1205 c (1+ c)))
|
|
|
1206 (setq fill-column (1- fill-column))
|
|
|
1207 (aset table-colwidth i fill-column)
|
|
|
1208
|
|
|
1209 (setq w3-last-fill-pos (point-min))
|
|
|
1210 (push (cons (nth 0 node) (nth 1 node))
|
|
|
1211 w3-display-open-element-stack)
|
|
|
1212 (w3-display-node node)
|
|
|
1213 (setq fill-column (aref table-colwidth i))
|
|
|
1214 (if w3-display-table-cut-words-p
|
|
|
1215 (w3-display-table-cut))
|
|
|
1216 (setq cols (cdr cols))
|
|
|
1217 (goto-char (point-min))
|
|
|
1218 (skip-chars-forward "\t\n\r")
|
|
|
1219 (beginning-of-line)
|
|
|
1220 (delete-region (point-min) (point))
|
|
|
1221 (goto-char (point-max))
|
|
|
1222 (skip-chars-backward " \t\n\r")
|
|
|
1223 (delete-region (point) (point-max))
|
|
|
1224 (if (>= fill-column (current-column))
|
|
|
1225 (insert-char ? (- fill-column (current-column))))
|
|
|
1226 (aset formatted-cols i (extract-rectangle (point-min) (point-max)))
|
|
|
1227 (delete-region (point-min) (point-max))
|
|
|
1228 (let ((j (1- colspan)))
|
|
|
1229 (while (> j 0)
|
|
|
1230 (aset table-colspans (+ i j) 0)
|
|
|
1231 (setq j (1- j))))
|
|
|
1232 (setq i (+ i colspan))
|
|
|
1233 ;; skip over columns that have leftover content
|
|
|
1234 (while (and (< i num-cols)
|
|
|
1235 (/= 0 (aref table-rowspans i)))
|
|
|
1236 (setq i (+ i (max 1 (aref table-colspans i)))))
|
|
|
1237 ))
|
|
|
1238
|
|
|
1239 ;; finish off the columns
|
|
|
1240 (while (< i num-cols)
|
|
|
1241 (aset table-colwidth i (aref column-dimensions i))
|
|
|
1242 (aset table-colspans i 1)
|
|
|
1243 (setq i (1+ i))
|
|
|
1244 (while (and (< i num-cols)
|
|
|
1245 (/= 0 (aref table-rowspans i)))
|
|
|
1246 (setq i (+ i (max 1 (aref table-colspans i))))))
|
|
|
1247
|
|
|
1248 ;; on the last row empty any pending rowspans per the rfc
|
|
|
1249 (if content nil
|
|
|
1250 (fillarray table-rowspans 1))
|
|
|
1251
|
|
|
1252 ;; Find the tallest rectangle that isn't a rowspanning cell
|
|
|
1253 (setq height 0
|
|
|
1254 i 0)
|
|
|
1255 (while (< i num-cols)
|
|
|
1256 (if (= 1 (aref table-rowspans i))
|
|
|
1257 (setq height (max height (length (aref formatted-cols i)))))
|
|
|
1258 (setq i (+ i (max 1 (aref table-colspans i)))))
|
|
|
1259
|
|
|
1260 ;; Make all rectangles the same height
|
|
|
1261 (setq i 0)
|
|
|
1262 (while (< i num-cols)
|
|
|
1263 (setq this-rectangle (aref formatted-cols i))
|
|
|
1264 (if (> height (length this-rectangle))
|
|
|
1265 (let ((colspan-fill-line
|
|
|
1266 (make-string (aref table-colwidth i) ? )))
|
|
|
1267 (case valign
|
|
|
1268 ((center middle)
|
|
|
1269 (aset formatted-cols i
|
|
|
1270 (append (make-list (/ (- height (length this-rectangle)) 2)
|
|
|
1271 colspan-fill-line)
|
|
|
1272 this-rectangle)))
|
|
|
1273 (bottom
|
|
|
1274 (aset formatted-cols i
|
|
|
1275 (append (make-list (- height (length this-rectangle))
|
|
|
1276 colspan-fill-line)
|
|
|
1277 this-rectangle))))))
|
|
|
1278 (setq i (+ i (max 1 (aref table-colspans i)))))))
|
|
|
1279
|
|
|
1280
|
|
|
1281 ;; fix broken colspans (this should only matter on illegal tables)
|
|
|
1282 (setq i 0)
|
|
|
1283 (while (< i num-cols)
|
|
|
1284 (if (= (aref table-colspans i) 0)
|
|
|
1285 (aset table-colspans i 1))
|
|
|
1286 (setq i (+ i (aref table-colspans i))))
|
|
|
1287
|
|
|
1288 ;; Insert a separator
|
|
|
1289 (insert fill-prefix)
|
|
|
1290 (setq i 0)
|
|
|
1291 (let (rflag bflag tflag lflag)
|
|
|
1292 (while (< i num-cols)
|
|
|
1293
|
|
|
1294 (setq rflag (= (aref prev-rowspans i) 0))
|
|
|
1295 (setq bflag (/= (aref table-colspans i) 0))
|
|
|
1296 (setq tflag (/= (aref prev-colspans i) 0))
|
|
|
1297
|
|
|
1298 (insert (w3-table-lookup-char lflag tflag rflag bflag))
|
|
|
1299 (setq lflag t)
|
|
|
1300 (cond ((= (aref prev-rowspans i) 0)
|
|
|
1301 (insert-char (w3-table-lookup-char t nil t nil)
|
|
|
1302 (aref column-dimensions i))
|
|
|
1303 (setq i (1+ i)))
|
|
|
1304 ((car (aref formatted-cols i))
|
|
|
1305 (insert (pop (aref formatted-cols i)))
|
|
|
1306 (setq lflag nil)
|
|
|
1307 (setq i (+ i (max (aref table-colspans i)
|
|
|
1308 (aref prev-colspans i) 1))))
|
|
|
1309 (t
|
|
|
1310 (insert-char ? (aref table-colwidth i))
|
|
|
1311 (setq lflag nil)
|
|
|
1312 (setq i (+ i (max (aref table-colspans i)
|
|
|
1313 (aref prev-colspans i) 1))))))
|
|
|
1314 (insert (w3-table-lookup-char lflag (/= row 1) nil t) "\n"))
|
|
|
1315
|
|
|
1316 ;; recalculate height (in case we've shortened a rowspanning cell
|
|
|
1317 (setq height 0
|
|
|
1318 i 0)
|
|
|
1319 (while (< i num-cols)
|
|
|
1320 (if (= 1 (aref table-rowspans i))
|
|
|
1321 (setq height (max height (length (aref formatted-cols i)))))
|
|
|
1322 (setq i (+ i (max 1 (aref table-colspans i)))))
|
|
|
1323
|
|
|
1324 ;; Insert a row back in original buffer
|
|
|
1325 (while (> height 0)
|
|
|
1326 (insert fill-prefix (w3-table-lookup-char nil t nil t))
|
|
|
1327 (setq i 0)
|
|
|
1328 (while (< i num-cols)
|
|
|
1329 (if (car (aref formatted-cols i))
|
|
|
1330 (insert (pop (aref formatted-cols i)))
|
|
|
1331 (insert-char ? (aref table-colwidth i)))
|
|
|
1332 (insert (w3-table-lookup-char nil t nil t))
|
|
|
1333 (setq i (+ i (max (aref table-colspans i) 1))))
|
|
|
1334 (insert "\n")
|
|
|
1335 ;;(and w3-do-incremental-display (w3-pause))
|
|
|
1336 (setq height (1- height)))
|
|
|
1337
|
|
|
1338 (setq i 0)
|
|
|
1339 (while (< i num-cols)
|
|
|
1340 (if (> (aref table-rowspans i) 0)
|
|
|
1341 (decf (aref table-rowspans i)))
|
|
|
1342 (incf i))
|
|
|
1343
|
|
|
1344 (setq prev-rowspans (copy-seq table-rowspans))
|
|
|
1345 (setq prev-colspans (copy-seq table-colspans))
|
|
|
1346
|
|
|
1347 (and w3-do-incremental-display (w3-pause))
|
|
|
1348
|
|
|
1349 )
|
|
|
1350 (caption
|
|
|
1351 (let ((left (length fill-prefix))
|
|
|
1352 (fill-prefix "")
|
|
|
1353 (fill-column table-width)
|
|
|
1354 (start (point)))
|
|
|
1355 (w3-display-node (pop content))
|
|
|
1356 (indent-rigidly start (point) left)))
|
|
|
1357 (otherwise
|
|
|
1358 (delete-horizontal-space)
|
|
|
1359 (setq content (nth 2 (car content))))
|
|
|
1360 ))
|
|
|
1361 (if (= (length column-dimensions) 0) nil
|
|
|
1362 (insert fill-prefix)
|
|
|
1363 (setq i 0)
|
|
|
1364 (let (tflag lflag)
|
|
|
1365 (while (< i num-cols)
|
|
|
1366 (setq tflag (/= (aref prev-colspans i) 0))
|
|
|
1367 (insert (w3-table-lookup-char lflag tflag t nil))
|
|
|
1368 (setq lflag t)
|
|
|
1369 (insert-char (w3-table-lookup-char t nil t nil)
|
|
|
1370 (aref column-dimensions i))
|
|
|
1371 (setq i (1+ i)))
|
|
|
1372 (insert (w3-table-lookup-char t t nil nil) "\n")))
|
|
|
1373 )
|
|
|
1374 (pop w3-display-open-element-stack)))))
|
|
|
1375
|
|
|
1376
|
|
|
1377
|
|
|
1378 (defun w3-display-create-unique-id ()
|
|
|
1379 (let* ((date (current-time-string))
|
|
|
1380 (dateinfo (and date (timezone-parse-date date)))
|
|
|
1381 (timeinfo (and date (timezone-parse-time (aref dateinfo 3)))))
|
|
|
1382 (if (and dateinfo timeinfo)
|
|
|
1383 (concat (aref dateinfo 0) ; Year
|
|
|
1384 (aref dateinfo 1) ; Month
|
|
|
1385 (aref dateinfo 2) ; Day
|
|
|
1386 (aref timeinfo 0) ; Hour
|
|
|
1387 (aref timeinfo 1) ; Minute
|
|
|
1388 (aref timeinfo 2) ; Second
|
|
|
1389 )
|
|
|
1390 "HoplesSLYCoNfUSED")))
|
|
|
1391
|
|
|
1392 (defun w3-display-node (node &optional nofaces)
|
|
|
1393 (let (
|
|
|
1394 (content-stack (list (list node)))
|
|
|
1395 (right-margin-stack (list fill-column))
|
|
|
1396 (left-margin-stack (list 0))
|
|
|
1397 node
|
|
|
1398 insert-before
|
|
|
1399 insert-after
|
|
|
1400 tag
|
|
|
1401 args
|
|
|
1402 content
|
|
|
1403 hyperlink-info
|
|
|
1404 break-style
|
|
|
1405 cur
|
|
|
1406 id
|
|
|
1407 class
|
|
|
1408 )
|
|
|
1409 (while content-stack
|
|
|
1410 (setq content (pop content-stack))
|
|
|
1411 (pop w3-active-faces)
|
|
|
1412 (pop w3-active-voices)
|
|
|
1413 (case (car (pop w3-display-open-element-stack))
|
|
|
1414 ;; Any weird, post-display-of-content stuff for specific tags
|
|
|
1415 ;; goes here. Couldn't think of any better way to do this when we
|
|
|
1416 ;; are iterative. *sigh*
|
|
|
1417 (a
|
|
|
1418 (if (not hyperlink-info)
|
|
|
1419 nil
|
|
|
1420 (add-text-properties (car hyperlink-info) (point)
|
|
|
1421 (list
|
|
|
1422 'mouse-face 'highlight
|
|
|
1423 'duplicable t
|
|
|
1424 'help-echo 'w3-balloon-help-callback
|
|
|
1425 'balloon-help 'w3-balloon-help-callback))
|
|
|
1426 (fillin-text-property (car hyperlink-info) (point)
|
|
|
1427 'button 'button (cadr hyperlink-info))
|
|
|
1428 (widget-put (cadr hyperlink-info) :to (set-marker
|
|
|
1429 (make-marker) (point))))
|
|
|
1430 (setq hyperlink-info nil))
|
|
|
1431 (form
|
|
|
1432 (pop w3-display-form-stack))
|
|
|
1433 ((ol ul dl dir menu)
|
|
|
1434 (pop w3-display-list-stack))
|
|
|
1435 (otherwise
|
|
|
1436 nil))
|
|
|
1437 (if (car insert-after)
|
|
|
1438 (w3-handle-string-content (car insert-after)))
|
|
|
1439 (pop insert-after)
|
|
|
1440 (w3-display-handle-end-break)
|
|
|
1441 (w3-pop-all-face-info)
|
|
|
1442 ;; Handle the element's content
|
|
|
1443 (while content
|
|
|
1444 (if (stringp (car content))
|
|
|
1445 (w3-handle-string-content (pop content))
|
|
|
1446 (setq node (pop content)
|
|
|
1447 tag (nth 0 node)
|
|
|
1448 args (nth 1 node)
|
|
|
1449 id (or (w3-get-attribute 'name)
|
|
|
1450 (w3-get-attribute 'id))
|
|
|
1451 )
|
|
|
1452 ;; This little bit of magic takes care of inline styles.
|
|
|
1453 ;; Evil Evil Evil, but it appears to work.
|
|
|
1454 (if (w3-get-attribute 'style)
|
|
|
1455 (let ((unique-id (or (w3-get-attribute 'id)
|
|
|
1456 (w3-display-create-unique-id)))
|
|
|
1457 (sheet ""))
|
|
|
1458 (setq sheet (format "%s.%s { %s }\n" tag unique-id
|
|
|
1459 (w3-get-attribute 'style)))
|
|
|
1460 (setf (nth 1 node) (cons (cons 'id unique-id) args))
|
|
|
1461 (w3-handle-style (list (cons 'data sheet)
|
|
|
1462 (cons 'notation "css")))))
|
|
|
1463 (setq w3-display-css-properties (css-get
|
|
|
1464 (nth 0 node) (nth 1 node)
|
|
|
1465 w3-current-stylesheet
|
|
|
1466 w3-display-open-element-stack))
|
|
|
1467 (if nofaces
|
|
|
1468 nil
|
|
|
1469 (push (w3-face-for-element node) w3-active-faces)
|
|
|
1470 (push (w3-voice-for-element node) w3-active-voices))
|
|
|
1471 (push (w3-get-style-info 'display node) break-style)
|
|
|
1472 (push (w3-get-style-info 'insert-after node) insert-after)
|
|
|
1473 (setq insert-before (w3-get-style-info 'insert-before node))
|
|
|
1474 (w3-display-handle-break)
|
|
|
1475 (if (w3-node-visible-p)
|
|
|
1476 nil
|
|
|
1477 (setq insert-before nil
|
|
|
1478 tag '*invisible)
|
|
|
1479 (setcar insert-after nil))
|
|
|
1480 (if insert-before
|
|
|
1481 (w3-handle-string-content insert-before))
|
|
|
1482 (setq insert-before nil)
|
|
|
1483 (if id
|
|
|
1484 (setq w3-id-positions (cons
|
|
|
1485 (cons (intern id)
|
|
|
1486 (set-marker (make-marker)
|
|
|
1487 (point-max)))
|
|
|
1488 w3-id-positions)))
|
|
|
1489 (case tag
|
|
|
1490 (a ; Hyperlinks
|
|
|
1491 (let* (
|
|
|
1492 (title (w3-get-attribute 'title))
|
|
|
1493 (name (or (w3-get-attribute 'id)
|
|
|
1494 (w3-get-attribute 'name)))
|
|
|
1495 (btdt nil)
|
|
|
1496 class
|
|
|
1497 (before nil)
|
|
|
1498 (after nil)
|
|
|
1499 (face nil)
|
|
|
1500 (voice nil)
|
|
|
1501 (st nil))
|
|
|
1502 (setq st (point)
|
|
|
1503 hyperlink-info (list
|
|
|
1504 st
|
|
|
1505 (append
|
|
|
1506 (list 'link :args nil
|
|
|
1507 :value "" :tag ""
|
|
|
1508 :action 'w3-follow-hyperlink
|
|
|
1509 :from
|
|
|
1510 (set-marker (make-marker) st)
|
|
|
1511 :help-echo 'w3-widget-echo
|
|
|
1512 )
|
|
|
1513 (alist-to-plist args))))
|
|
|
1514 (w3-handle-content node)
|
|
|
1515 )
|
|
|
1516 )
|
|
|
1517 ((ol ul dl dir menu)
|
|
|
1518 (push 0 w3-display-list-stack)
|
|
|
1519 (w3-handle-content node))
|
|
|
1520 (img ; inlined image
|
|
|
1521 (w3-handle-image)
|
|
|
1522 (w3-handle-empty-tag))
|
|
|
1523 (script ; Scripts
|
|
|
1524 (w3-handle-empty-tag))
|
|
|
1525 ((embed object) ; Embedded images/content
|
|
|
1526 (w3-handle-content node)
|
|
|
1527 )
|
|
|
1528 (hr ; Cause line break & insert rule
|
|
|
1529 (let* ((perc (or (w3-get-attribute 'width)
|
|
|
1530 (w3-get-style-info 'width node)
|
|
|
1531 "100%"))
|
|
|
1532 (rule nil)
|
|
|
1533 (width nil))
|
|
|
1534 (setq perc (/ (min (string-to-int perc) 100) 100.0)
|
|
|
1535 width (* fill-column perc)
|
|
|
1536 rule (make-string (max (truncate width) 0)
|
|
|
1537 w3-horizontal-rule-char)
|
|
|
1538 node (list 'hr nil (list rule)))
|
|
|
1539 (w3-handle-content node)))
|
|
|
1540 (map ; Client side imagemaps
|
|
|
1541 (let ((name (or (w3-get-attribute 'name)
|
|
|
1542 (w3-get-attribute 'id)
|
|
|
1543 "unnamed"))
|
|
|
1544 (areas
|
|
|
1545 (mapcar
|
|
|
1546 (function
|
|
|
1547 (lambda (node)
|
|
|
1548 (let* ((args (nth 1 node))
|
|
|
1549 (type (downcase (or
|
|
|
1550 (w3-get-attribute 'shape)
|
|
|
1551 "rect")))
|
|
|
1552 (coords (w3-decode-area-coords
|
|
|
1553 (or (cdr-safe
|
|
|
1554 (assq 'coords args)) "")))
|
|
|
1555 (alt (w3-get-attribute 'alt))
|
|
|
1556 (href (if (assq 'nohref args)
|
|
|
1557 t
|
|
|
1558 (or (w3-get-attribute 'src)
|
|
|
1559 (w3-get-attribute 'href))))
|
|
|
1560 )
|
|
|
1561 (vector type coords href alt))
|
|
|
1562 )
|
|
|
1563 )
|
|
|
1564 (nth 2 node))))
|
|
|
1565 (setq w3-imagemaps (cons (cons name areas) w3-imagemaps)))
|
|
|
1566 (w3-handle-empty-tag)
|
|
|
1567 )
|
|
|
1568 (table ; Yeeee-hah!
|
|
|
1569 (w3-display-table node)
|
|
|
1570 (setq w3-last-fill-pos (point))
|
|
|
1571 (w3-handle-empty-tag)
|
|
|
1572 )
|
|
|
1573 (isindex
|
|
|
1574 (let ((prompt (or (w3-get-attribute 'prompt)
|
|
|
1575 "Search on (+ separates keywords): "))
|
|
|
1576 action node)
|
|
|
1577 (setq action (or (w3-get-attribute 'src)
|
|
|
1578 (w3-get-attribute 'href)
|
|
|
1579 (url-view-url t)))
|
|
|
1580 (if (and prompt (string-match "[^: \t-]+$" prompt))
|
|
|
1581 (setq prompt (concat prompt ": ")))
|
|
|
1582 (setq node
|
|
|
1583 (list 'isindex nil
|
|
|
1584 (list
|
|
|
1585 (list 'hr nil nil)
|
|
|
1586 (list 'form
|
|
|
1587 (list (cons 'action action)
|
|
|
1588 (cons 'enctype
|
|
|
1589 "application/x-w3-isindex")
|
|
|
1590 (cons 'method "get"))
|
|
|
1591 (list
|
|
|
1592 prompt
|
|
|
1593 (list 'input
|
|
|
1594 (list (cons 'type "text")
|
|
|
1595 (cons 'name "isindex"))))))))
|
|
|
1596 (w3-handle-content node)
|
|
|
1597 (setq w3-current-isindex (cons action prompt)))
|
|
|
1598 )
|
|
|
1599 (*document
|
|
|
1600 (let ((info (mapcar (lambda (x) (cons x (symbol-value x)))
|
|
|
1601 w3-persistent-variables)))
|
|
|
1602 (set-buffer (generate-new-buffer "Untitled"))
|
|
|
1603 (setq w3-current-form-number 0
|
|
|
1604 w3-display-open-element-stack nil
|
|
|
1605 w3-last-fill-pos (point-min)
|
|
|
1606 fill-column (min (- (or w3-strict-width (window-width))
|
|
|
1607 w3-right-margin)
|
|
|
1608 (or w3-maximum-line-length
|
|
|
1609 (window-width))))
|
|
|
1610 (switch-to-buffer (current-buffer))
|
|
|
1611 (buffer-disable-undo (current-buffer))
|
|
|
1612 (mapcar (function (lambda (x) (set (car x) (cdr x)))) info)
|
|
|
1613 ;; ACK! We don't like filladapt mode!
|
|
|
1614 (set (make-local-variable 'filladapt-mode) nil)
|
|
|
1615 (set (make-local-variable 'adaptive-fill-mode) nil)
|
|
|
1616 (setq w3-current-stylesheet (css-copy-stylesheet
|
|
|
1617 w3-user-stylesheet)
|
|
|
1618 w3-last-fill-pos (point)
|
|
|
1619 fill-column (min (- (or w3-strict-width (window-width))
|
|
|
1620 w3-right-margin)
|
|
|
1621 (or w3-maximum-line-length
|
|
|
1622 (window-width)))
|
|
|
1623 fill-prefix "")
|
|
|
1624 (set (make-local-variable 'inhibit-read-only) t))
|
|
|
1625 (w3-handle-content node)
|
|
|
1626 )
|
|
|
1627 (*invisible
|
|
|
1628 (w3-handle-empty-tag))
|
|
|
1629 (meta
|
|
|
1630 (let* ((equiv (cdr-safe (assq 'http-equiv args)))
|
|
|
1631 (value (w3-get-attribute 'content))
|
|
|
1632 (name (w3-get-attribute 'name))
|
|
|
1633 (node (and equiv (assoc (setq equiv (downcase equiv))
|
|
|
1634 url-current-mime-headers))))
|
|
|
1635 (if equiv
|
|
|
1636 (setq url-current-mime-headers (cons
|
|
|
1637 (cons equiv value)
|
|
|
1638 url-current-mime-headers)))
|
|
|
1639 (if name
|
|
|
1640 (setq w3-current-metainfo (cons
|
|
|
1641 (cons name value)
|
|
|
1642 w3-current-metainfo)))
|
|
|
1643
|
|
|
1644 ;; Special-case the Set-Cookie header
|
|
|
1645 (if (and equiv (string= (downcase equiv) "set-cookie"))
|
|
|
1646 (url-cookie-handle-set-cookie value))
|
|
|
1647 ;; Special-case the refresh header
|
|
|
1648 (if (and equiv (string= (downcase equiv) "refresh"))
|
|
|
1649 (url-handle-refresh-header value)))
|
|
|
1650 (w3-handle-empty-tag)
|
|
|
1651 )
|
|
|
1652 (link
|
|
|
1653 ;; This doesn't handle blank-separated values per the RFC.
|
|
|
1654 (w3-parse-link args)
|
|
|
1655 (w3-handle-empty-tag))
|
|
|
1656 (title
|
|
|
1657 (let ((potential-title "")
|
|
|
1658 (content (nth 2 node)))
|
|
|
1659 (while content
|
|
|
1660 (setq potential-title (concat potential-title (car content))
|
|
|
1661 content (cdr content)))
|
|
|
1662 (setq potential-title (w3-normalize-spaces potential-title))
|
|
|
1663 (if (string-match "^[ \t]*$" potential-title)
|
|
|
1664 nil
|
|
|
1665 (rename-buffer (generate-new-buffer-name
|
|
|
1666 (w3-fix-spaces potential-title)))))
|
|
|
1667 (w3-handle-empty-tag))
|
|
|
1668 (form
|
|
|
1669 (setq w3-current-form-number (1+ w3-current-form-number))
|
|
|
1670 (let* (
|
|
|
1671 (action (w3-get-attribute 'action))
|
|
|
1672 (url nil))
|
|
|
1673 (if (not action)
|
|
|
1674 (setq args (cons (cons 'action (url-view-url t)) args)))
|
|
|
1675 (push (cons
|
|
|
1676 (cons 'form-number
|
|
|
1677 w3-current-form-number)
|
|
|
1678 args) w3-display-form-stack)
|
|
|
1679 (w3-handle-content node)))
|
|
|
1680 (input
|
|
|
1681 (if (not (assq 'form w3-display-open-element-stack))
|
|
|
1682 (message "Input field outside of a <form>")
|
|
|
1683 (let* (
|
|
|
1684 (type (intern (downcase (or (w3-get-attribute 'type)
|
|
|
1685 "text"))))
|
|
|
1686 (name (w3-get-attribute 'name))
|
|
|
1687 (value (or (w3-get-attribute 'value) ""))
|
|
|
1688 (size (if (w3-get-attribute 'size)
|
|
|
1689 (string-to-int (w3-get-attribute 'size))))
|
|
|
1690 (maxlength (cdr (assoc 'maxlength args)))
|
|
|
1691 (default value)
|
|
|
1692 (action (car w3-display-form-stack))
|
|
|
1693 (options)
|
|
|
1694 (id (w3-get-attribute 'id))
|
|
|
1695 (checked (assq 'checked args)))
|
|
|
1696 (if (and (string-match "^[ \t\n\r]+$" value)
|
|
|
1697 (not (eq type 'hidden)))
|
|
|
1698 (setq value ""))
|
|
|
1699 (if maxlength (setq maxlength (string-to-int maxlength)))
|
|
|
1700 (if (and name (string-match "[\r\n]" name))
|
|
|
1701 (setq name (mapconcat (function
|
|
|
1702 (lambda (x)
|
|
|
1703 (if (memq x '(?\r ?\n))
|
|
|
1704 ""
|
|
|
1705 (char-to-string x))))
|
|
|
1706 name "")))
|
|
|
1707 (if (memq type '(checkbox radio)) (setq default checked))
|
|
|
1708 (if (and (eq type 'checkbox) (string= value ""))
|
|
|
1709 (setq value "on"))
|
|
|
1710 (w3-form-add-element type name
|
|
|
1711 value size maxlength default action
|
|
|
1712 options w3-current-form-number id checked
|
|
|
1713 (car w3-active-faces))
|
|
|
1714 )
|
|
|
1715 )
|
|
|
1716 (w3-handle-empty-tag)
|
|
|
1717 )
|
|
|
1718 (select
|
|
|
1719 (if (not (assq 'form w3-display-open-element-stack))
|
|
|
1720 (message "Input field outside of a <form>")
|
|
|
1721 (let* (
|
|
|
1722 (name (w3-get-attribute 'name))
|
|
|
1723 (size (string-to-int (or (w3-get-attribute 'size)
|
|
|
1724 "20")))
|
|
|
1725 (maxlength (cdr (assq 'maxlength args)))
|
|
|
1726 (value nil)
|
|
|
1727 (tmp nil)
|
|
|
1728 (action (car w3-display-form-stack))
|
|
|
1729 (options)
|
|
|
1730 (id (w3-get-attribute 'id))
|
|
|
1731 (checked (assq 'checked args)))
|
|
|
1732 (if maxlength (setq maxlength (string-to-int maxlength)))
|
|
|
1733 (if (and name (string-match "[\r\n]" name))
|
|
|
1734 (setq name (mapconcat (function
|
|
|
1735 (lambda (x)
|
|
|
1736 (if (memq x '(?\r ?\n))
|
|
|
1737 ""
|
|
|
1738 (char-to-string x))))
|
|
|
1739 name "")))
|
|
|
1740 (setq options
|
|
|
1741 (mapcar
|
|
|
1742 (function
|
|
|
1743 (lambda (n)
|
|
|
1744 (setq tmp (w3-normalize-spaces
|
|
|
1745 (apply 'concat (nth 2 n)))
|
|
|
1746 tmp (cons tmp
|
|
|
1747 (or
|
|
|
1748 (cdr-safe (assq 'value (nth 1 n)))
|
|
|
1749 tmp)))
|
|
|
1750 (if (assq 'selected (nth 1 n))
|
|
|
1751 (setq value (car tmp)))
|
|
|
1752 tmp))
|
|
|
1753 (nth 2 node)))
|
|
|
1754 (if (not value)
|
|
|
1755 (setq value (caar options)))
|
|
|
1756 (w3-form-add-element 'option name
|
|
|
1757 value size maxlength value action
|
|
|
1758 options w3-current-form-number id nil
|
|
|
1759 (car w3-active-faces))
|
|
|
1760 ;; This should really not be necessary, but some versions
|
|
|
1761 ;; of the widget library leave point _BEFORE_ the menu
|
|
|
1762 ;; widget instead of after.
|
|
|
1763 (goto-char (point-max))
|
|
|
1764 )
|
|
|
1765 )
|
|
|
1766 (w3-handle-empty-tag)
|
|
|
1767 )
|
|
|
1768 (textarea
|
|
|
1769 (if (not (assq 'form w3-display-open-element-stack))
|
|
|
1770 (message "Input field outside of a <form>")
|
|
|
1771 (let* (
|
|
|
1772 (name (w3-get-attribute 'name))
|
|
|
1773 (size (string-to-int (or (w3-get-attribute 'size)
|
|
|
1774 "20")))
|
|
|
1775 (maxlength (cdr (assq 'maxlength args)))
|
|
|
1776 (value (w3-normalize-spaces
|
|
|
1777 (apply 'concat (nth 2 node))))
|
|
|
1778 (default value)
|
|
|
1779 (tmp nil)
|
|
|
1780 (action (car w3-display-form-stack))
|
|
|
1781 (options)
|
|
|
1782 (id (w3-get-attribute 'id))
|
|
|
1783 (checked (assq 'checked args)))
|
|
|
1784 (if maxlength (setq maxlength (string-to-int maxlength)))
|
|
|
1785 (if (and name (string-match "[\r\n]" name))
|
|
|
1786 (setq name (mapconcat (function
|
|
|
1787 (lambda (x)
|
|
|
1788 (if (memq x '(?\r ?\n))
|
|
|
1789 ""
|
|
|
1790 (char-to-string x))))
|
|
|
1791 name "")))
|
|
|
1792 (w3-form-add-element 'multiline name
|
|
|
1793 value size maxlength value action
|
|
|
1794 options w3-current-form-number id nil
|
|
|
1795 (car w3-active-faces))
|
|
|
1796 )
|
|
|
1797 )
|
|
|
1798 (w3-handle-empty-tag)
|
|
|
1799 )
|
|
|
1800 (style
|
|
|
1801 (w3-handle-style (cons (cons 'data (apply 'concat (nth 2 node)))
|
|
|
1802 (nth 1 node)))
|
|
|
1803 (w3-handle-empty-tag))
|
|
|
1804 (otherwise
|
|
|
1805 ;; Generic formatting
|
|
|
1806 (w3-handle-content node))
|
|
|
1807 ) ; case tag
|
|
|
1808 ) ; stringp content
|
|
|
1809 ) ; while content
|
|
|
1810 ) ; while content-stack
|
|
|
1811 )
|
|
|
1812 )
|
|
|
1813
|
|
|
1814 (defun w3-draw-tree (tree)
|
|
|
1815 ;; The main entry point - wow complicated
|
|
|
1816 (setq w3-current-stylesheet w3-user-stylesheet)
|
|
|
1817 (while tree
|
|
|
1818 (w3-display-node (car tree))
|
|
|
1819 (setq tree (cdr tree)))
|
|
|
1820 (w3-display-fix-widgets)
|
|
|
1821 (w3-form-resurrect-widgets))
|
|
|
1822
|
|
|
1823 (defun time-display (&optional tree)
|
|
|
1824 ;; Return the # of seconds it took to draw 'tree'
|
|
|
1825 (let ((st (nth 1 (current-time)))
|
|
|
1826 (nd nil))
|
|
|
1827 (w3-draw-tree (or tree w3-last-parse-tree))
|
|
|
1828 (setq nd (nth 1 (current-time)))
|
|
|
1829 (- nd st)))
|
|
|
1830
|
|
|
1831
|
|
|
1832 (defun w3-prepare-buffer (&rest args)
|
|
|
1833 ;; The text/html viewer - does all the drawing and displaying of the buffer
|
|
|
1834 ;; that is necessary to go from raw HTML to a good presentation.
|
|
|
1835 (let* ((source (buffer-string))
|
|
|
1836 (source-buf (current-buffer))
|
|
|
1837 (parse (w3-parse-buffer source-buf)))
|
|
|
1838 (set-buffer-modified-p nil)
|
|
|
1839 (w3-draw-tree parse)
|
|
|
1840 (kill-buffer source-buf)
|
|
|
1841 (set-buffer-modified-p nil)
|
|
|
1842 (setq w3-current-source source
|
|
|
1843 w3-current-parse parse)
|
|
|
1844 (if (and (boundp 'w3-image-widgets-waiting) w3-image-widgets-waiting)
|
|
|
1845 (let (url glyph widget)
|
|
|
1846 (while w3-image-widgets-waiting
|
|
|
1847 (setq widget (car w3-image-widgets-waiting)
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1848 w3-image-widgets-waiting (cdr w3-image-widgets-waiting)
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|
|
1849 url (widget-get widget 'src)
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|
1850 glyph (cdr-safe (assoc url w3-graphics-list)))
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|
|
1851 (widget-value-set widget glyph))))
|
|
|
1852 (w3-mode)
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|
|
1853 ;;(w3-handle-annotations)
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|
|
1854 ;;(w3-handle-headers)
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|
|
1855 (set-buffer-modified-p nil)
|
|
|
1856 (goto-char (point-min))
|
|
|
1857 (if url-keep-history
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|
|
1858 (let ((url (url-view-url t)))
|
|
|
1859 (if (not url-history-list)
|
|
|
1860 (setq url-history-list (make-hash-table :size 131 :test 'equal)))
|
|
|
1861 (cl-puthash url (buffer-name) url-history-list)
|
|
|
1862 (if (fboundp 'w3-shuffle-history-menu)
|
|
|
1863 (w3-shuffle-history-menu)))))
|
|
|
1864 )
|
|
|
1865
|
|
|
1866 (provide 'w3-display)
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