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1 ;;; smiley.el --- displaying smiley faces
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2 ;; Copyright (C) 1996,97 Free Software Foundation, Inc.
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4 ;; Author: Wes Hardaker <hardaker@ece.ucdavis.edu>
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5 ;; Keywords: fun
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6
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7 ;; This file is part of GNU Emacs.
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8
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9 ;; GNU Emacs is free software; you can redistribute it and/or modify
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10 ;; it under the terms of the GNU General Public License as published by
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11 ;; the Free Software Foundation; either version 2, or (at your option)
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12 ;; any later version.
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13
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14 ;; GNU Emacs is distributed in the hope that it will be useful,
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15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 ;; GNU General Public License for more details.
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18
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19 ;; You should have received a copy of the GNU General Public License
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20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
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21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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22 ;; Boston, MA 02111-1307, USA.
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23
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24 ;;; Commentary:
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25
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26 ;;
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27 ;; comments go here.
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28 ;;
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29
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30 ;;; Test smileys: :-] :-o :-) ;-) :-\ :-| :-d :-P 8-| :-(
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31
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32 ;; To use:
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33 ;; (require 'smiley)
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34 ;; (add-hook 'gnus-article-display-hook 'gnus-smiley-display t)
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35
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36 ;; The smilies were drawn by Joe Reiss <jreiss@vt.edu>.
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37
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38 (require 'annotations)
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2
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39 (require 'messagexmas)
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40 (require 'cl)
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41 (require 'custom)
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42
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43 (defgroup smiley nil
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44 "Turn :-)'s into real images (XEmacs)."
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45 :group 'gnus-visual)
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46
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47 (defcustom smiley-data-directory (message-xmas-find-glyph-directory "smilies")
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48 "Location of the smiley faces files."
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49 :type 'directory
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50 :group 'smiley)
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51
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52 ;; Notice the subtle differences in the regular expressions in the two alists below
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53
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54 (defcustom smiley-deformed-regexp-alist
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55 '(("\\(:-*[<«]+\\)\\W" 1 "FaceAngry.xpm")
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56 ("\\(:-+\\]+\\)\\W" 1 "FaceGoofy.xpm")
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57 ("\\(:-*D\\)\\W" 1 "FaceGrinning.xpm")
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58 ("\\(:-*[)>}»]+\\)\\W" 1 "FaceHappy.xpm")
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59 ("\\(:-*[/\\\"]\\)[^/]" 1 "FaceIronic.xpm")
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60 ("\\([8|]-*[|Oo%]\\)\\W" 1 "FaceKOed.xpm")
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61 ("\\([:|]-*#+\\)\\W" 1 "FaceNyah.xpm")
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62 ("\\(:-*[({]+\\)\\W" 1 "FaceSad.xpm")
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63 ("\\(:-*[Oo\*]\\)\\W" 1 "FaceStartled.xpm")
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64 ("\\(:-*|\\)\\W" 1 "FaceStraight.xpm")
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65 ("\\(:-*p\\)\\W" 1 "FaceTalking.xpm")
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66 ("\\(:-*d\\)\\W" 1 "FaceTasty.xpm")
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67 ("\\(;-*[>)}»]+\\)\\W" 1 "FaceWinking.xpm")
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68 ("\\(:-*[Vvµ]\\)\\W" 1 "FaceWry.xpm")
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2
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69 ("\\([:|]-*P\\)\\W" 1 "FaceYukky.xpm"))
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70 "Normal and deformed faces for smilies."
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71 :type '(repeat (list regexp
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72 (integer :tag "Match")
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73 (string :tag "Image")))
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74 :group 'smiley)
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75
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76 (defcustom smiley-nosey-regexp-alist
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77 '(("\\(:-+[<«]+\\)\\W" 1 "FaceAngry.xpm")
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78 ("\\(:-+\\]+\\)\\W" 1 "FaceGoofy.xpm")
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79 ("\\(:-+D\\)\\W" 1 "FaceGrinning.xpm")
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80 ("\\(:-+[}»]+\\)\\W" 1 "FaceHappy.xpm")
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81 ("\\(:-*)+\\)\\W" 1 "FaceHappy.xpm")
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82 ("\\(:-+[/\\\"]+\\)\\W" 1 "FaceIronic.xpm")
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83 ("\\([8|]-+[|Oo%]\\)\\W" 1 "FaceKOed.xpm")
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84 ("\\([:|]-+#+\\)\\W" 1 "FaceNyah.xpm")
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85 ("\\(:-+[({]+\\)\\W" 1 "FaceSad.xpm")
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86 ("\\(:-+[Oo\*]\\)\\W" 1 "FaceStartled.xpm")
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87 ("\\(:-+|\\)\\W" 1 "FaceStraight.xpm")
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88 ("\\(:-+p\\)\\W" 1 "FaceTalking.xpm")
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89 ("\\(:-+d\\)\\W" 1 "FaceTasty.xpm")
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90 ("\\(;-+[>)}»]+\\)\\W" 1 "FaceWinking.xpm")
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91 ("\\(:-+[Vvµ]\\)\\W" 1 "FaceWry.xpm")
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92 ("\\(][:8B]-[)>]\\)\\W" 1 "FaceDevilish.xpm")
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93 ("\\([:|]-+P\\)\\W" 1 "FaceYukky.xpm"))
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94 "Smileys with noses. These get less false matches."
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95 :type '(repeat (list regexp
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96 (integer :tag "Match")
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97 (string :tag "Image")))
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98 :group 'smiley)
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99
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100 (defcustom smiley-regexp-alist smiley-deformed-regexp-alist
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101 "A list of regexps to map smilies to real images.
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102 Defaults to the content of smiley-deformed-regexp-alist.
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103 An alternative smiley-nosey-regexp-alist that
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104 matches less aggressively is available.
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105 If this is a symbol, take its value."
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106 :type '(radio (variable-item smiley-deformed-regexp-alist)
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107 (variable-item smiley-nosey-regexp-alist)
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108 symbol
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109 (repeat (list regexp
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110 (integer :tag "Match")
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111 (string :tag "Image"))))
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112 :group 'smiley)
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113
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114 (defcustom smiley-flesh-color "yellow"
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115 "Flesh color."
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116 :type 'string
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117 :group 'smiley)
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118
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119 (defcustom smiley-features-color "black"
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120 "Features color."
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121 :type 'string
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122 :group 'smiley)
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123
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124 (defcustom smiley-tongue-color "red"
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125 "Tongue color."
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126 :type 'string
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127 :group 'smiley)
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128
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129 (defcustom smiley-circle-color "black"
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130 "Circle color."
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131 :type 'string
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132 :group 'smiley)
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133
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134 (defcustom smiley-mouse-face 'highlight
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135 "Face used for mouse highlighting in the smiley buffer.
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136
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137 Smiley buttons will be displayed in this face when the cursor is
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138 above them."
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139 :type 'face
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140 :group 'smiley)
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141
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142
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143 (defvar smiley-glyph-cache nil)
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144 (defvar smiley-running-xemacs (string-match "XEmacs" emacs-version))
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145
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146 (defvar smiley-map (make-sparse-keymap "smiley-keys")
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147 "keymap to toggle smiley states")
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148
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149 (define-key smiley-map [(button2)] 'smiley-toggle-extent)
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150
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151 (defun smiley-create-glyph (smiley pixmap)
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152 (and
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153 smiley-running-xemacs
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154 (or
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155 (cdr-safe (assoc pixmap smiley-glyph-cache))
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156 (let* ((xpm-color-symbols
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157 (and (featurep 'xpm)
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158 (append `(("flesh" ,smiley-flesh-color)
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159 ("features" ,smiley-features-color)
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160 ("tongue" ,smiley-tongue-color))
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161 xpm-color-symbols)))
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162 (glyph (make-glyph
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163 (list
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164 (cons 'x (expand-file-name pixmap smiley-data-directory))
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165 (cons 'tty smiley)))))
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166 (setq smiley-glyph-cache (cons (cons pixmap glyph) smiley-glyph-cache))
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167 (set-glyph-face glyph 'default)
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168 glyph))))
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169
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170 ;;;###autoload
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171 (defun smiley-region (beg end)
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172 "Smilify the region between point and mark."
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173 (interactive "r")
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174 (smiley-buffer (current-buffer) beg end))
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175
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176 (defun smiley-toggle-extent (event)
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177 "Toggle smiley at given point"
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178 (interactive "e")
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179 (let* ((ant (event-glyph-extent event))
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180 (pt (event-closest-point event))
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181 ext)
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182 (if (annotationp ant)
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183 (when (extentp (setq ext (extent-property ant 'smiley-extent)))
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184 (set-extent-property ext 'invisible nil)
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185 (hide-annotation ant))
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186 (when pt
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187 (while (setq ext (extent-at pt (event-buffer event) nil ext 'at))
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188 (when (annotationp (setq ant
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189 (extent-property ext 'smiley-annotation)))
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190 (reveal-annotation ant)
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191 (set-extent-property ext 'invisible t)))))))
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192
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193 ;;;###autoload
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194 (defun smiley-buffer (&optional buffer st nd)
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195 (interactive)
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196 (when (featurep 'x)
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197 (save-excursion
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198 (when buffer
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199 (set-buffer buffer))
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200 (let ((buffer-read-only nil)
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201 (alist (if (symbolp smiley-regexp-alist)
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202 (symbol-value smiley-regexp-alist)
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203 smiley-regexp-alist))
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204 entry regexp beg group file)
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205 (goto-char (or st (point-min)))
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206 (setq beg (point))
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207 ;; loop through alist
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208 (while (setq entry (pop alist))
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209 (setq regexp (car entry)
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210 group (cadr entry)
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211 file (caddr entry))
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212 (goto-char beg)
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213 (while (re-search-forward regexp nd t)
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214 (let* ((start (match-beginning group))
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215 (end (match-end group))
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216 (glyph (smiley-create-glyph (buffer-substring start end)
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217 file)))
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218 (when glyph
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219 (mapcar 'delete-annotation (annotations-at end))
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220 (let ((ext (make-extent start end))
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221 (ant (make-annotation glyph end 'text)))
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222 ;; set text extent params
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223 (set-extent-property ext 'end-open t)
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224 (set-extent-property ext 'start-open t)
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225 (set-extent-property ext 'invisible t)
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226 (set-extent-property ext 'keymap smiley-map)
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227 (set-extent-property ext 'mouse-face 'smiley-mouse-face)
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228 (set-extent-property ext 'intangible t)
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229 ;; set annotation params
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230 (set-extent-property ant 'mouse-face 'smiley-mouse-face)
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231 (set-extent-property ant 'keymap smiley-map)
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232 ;; remember each other
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233 (set-extent-property ant 'smiley-extent ext)
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234 (set-extent-property ext 'smiley-annotation ant))
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235 (when (smiley-end-paren-p start end)
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236 (make-annotation ")" end 'text))
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237 (goto-char end)))))))))
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238
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239 (defun smiley-end-paren-p (start end)
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240 "Try to guess whether the current smiley is an end-paren smiley."
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241 (save-excursion
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242 (goto-char start)
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243 (when (and (re-search-backward "[()]" nil t)
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244 (= (following-char) ?\()
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245 (goto-char end)
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246 (or (not (re-search-forward "[()]" nil t))
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247 (= (char-after (1- (point))) ?\()))
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248 t)))
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249
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250 ;;;###autoload
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251 (defun gnus-smiley-display ()
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252 (interactive)
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253 (save-excursion
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254 (set-buffer gnus-article-buffer)
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255 (goto-char (point-min))
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256 ;; We skip the headers.
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257 (unless (search-forward "\n\n" nil t)
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258 (goto-char (point-max)))
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259 (smiley-buffer (current-buffer) (point))))
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260
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261 (provide 'smiley)
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262
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263 ;;; smiley.el ends here
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