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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
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53 ;; two alists below.
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54
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55 (defcustom smiley-deformed-regexp-alist
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56 '(("\\(:-*[<«]+\\)\\W" 1 "FaceAngry.xpm")
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57 ("\\(:-+\\]+\\)\\W" 1 "FaceGoofy.xpm")
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58 ("\\(:-*D\\)\\W" 1 "FaceGrinning.xpm")
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59 ("\\(:-*[)>}»]+\\)\\W" 1 "FaceHappy.xpm")
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60 ("\\(:-*[/\\\"]\\)[^/]\\W" 1 "FaceIronic.xpm")
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61 ("\\([8|]-*[|Oo%]\\)\\W" 1 "FaceKOed.xpm")
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62 ("\\([:|]-*#+\\)\\W" 1 "FaceNyah.xpm")
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63 ("\\(:-*[({]+\\)\\W" 1 "FaceSad.xpm")
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64 ("\\(:-*[Oo\*]\\)\\W" 1 "FaceStartled.xpm")
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65 ("\\(:-*|\\)\\W" 1 "FaceStraight.xpm")
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66 ("\\(:-*p\\)\\W" 1 "FaceTalking.xpm")
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67 ("\\(:-*d\\)\\W" 1 "FaceTasty.xpm")
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68 ("\\(;-*[>)}»]+\\)\\W" 1 "FaceWinking.xpm")
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69 ("\\(:-*[Vvµ]\\)\\W" 1 "FaceWry.xpm")
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70 ("\\([:|]-*P\\)\\W" 1 "FaceYukky.xpm"))
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71 "Normal and deformed faces for smilies."
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72 :type '(repeat (list regexp
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73 (integer :tag "Match")
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74 (string :tag "Image")))
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75 :group 'smiley)
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76
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77 (defcustom smiley-nosey-regexp-alist
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78 '(("\\(:-+[<«]+\\)\\W" 1 "FaceAngry.xpm")
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79 ("\\(:-+\\]+\\)\\W" 1 "FaceGoofy.xpm")
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80 ("\\(:-+D\\)\\W" 1 "FaceGrinning.xpm")
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81 ("\\(:-+[}»]+\\)\\W" 1 "FaceHappy.xpm")
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82 ("\\(:-*)+\\)\\W" 1 "FaceHappy.xpm")
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83 ("\\(:-+[/\\\"]+\\)\\W" 1 "FaceIronic.xpm")
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84 ("\\([8|]-+[|Oo%]\\)\\W" 1 "FaceKOed.xpm")
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85 ("\\([:|]-+#+\\)\\W" 1 "FaceNyah.xpm")
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86 ("\\(:-+[({]+\\)\\W" 1 "FaceSad.xpm")
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87 ("\\(:-+[Oo\*]\\)\\W" 1 "FaceStartled.xpm")
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88 ("\\(:-+|\\)\\W" 1 "FaceStraight.xpm")
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89 ("\\(:-+p\\)\\W" 1 "FaceTalking.xpm")
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90 ("\\(:-+d\\)\\W" 1 "FaceTasty.xpm")
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91 ("\\(;-+[>)}»]+\\)\\W" 1 "FaceWinking.xpm")
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92 ("\\(:-+[Vvµ]\\)\\W" 1 "FaceWry.xpm")
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93 ("\\(][:8B]-[)>]\\)\\W" 1 "FaceDevilish.xpm")
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94 ("\\([:|]-+P\\)\\W" 1 "FaceYukky.xpm"))
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95 "Smileys with noses. These get less false matches."
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96 :type '(repeat (list regexp
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97 (integer :tag "Match")
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98 (string :tag "Image")))
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99 :group 'smiley)
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100
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101 (defcustom smiley-regexp-alist smiley-deformed-regexp-alist
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102 "A list of regexps to map smilies to real images.
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103 Defaults to the contents of `smiley-deformed-regexp-alist'.
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104 An alternative is `smiley-nosey-regexp-alist' that matches less
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105 aggressively.
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106 If this is a symbol, take its value."
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107 :type '(radio (variable-item smiley-deformed-regexp-alist)
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108 (variable-item smiley-nosey-regexp-alist)
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109 symbol
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110 (repeat (list regexp
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111 (integer :tag "Match")
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112 (string :tag "Image"))))
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113 :group 'smiley)
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114
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115 (defcustom smiley-flesh-color "yellow"
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116 "Flesh color."
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117 :type 'string
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118 :group 'smiley)
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119
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120 (defcustom smiley-features-color "black"
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121 "Features color."
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122 :type 'string
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123 :group 'smiley)
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124
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125 (defcustom smiley-tongue-color "red"
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126 "Tongue color."
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127 :type 'string
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128 :group 'smiley)
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129
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130 (defcustom smiley-circle-color "black"
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131 "Circle color."
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132 :type 'string
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133 :group 'smiley)
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134
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135 (defcustom smiley-mouse-face 'highlight
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136 "Face used for mouse highlighting in the smiley buffer.
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137
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138 Smiley buttons will be displayed in this face when the cursor is
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139 above them."
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140 :type 'face
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141 :group 'smiley)
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142
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143
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144 (defvar smiley-glyph-cache nil)
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145 (defvar smiley-running-xemacs (string-match "XEmacs" emacs-version))
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146
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147 (defvar smiley-map (make-sparse-keymap "smiley-keys")
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148 "Keymap to toggle smiley states.")
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149
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150 (define-key smiley-map [(button2)] 'smiley-toggle-extent)
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151
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152 (defun smiley-create-glyph (smiley pixmap)
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153 (and
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154 smiley-running-xemacs
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155 (or
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156 (cdr-safe (assoc pixmap smiley-glyph-cache))
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157 (let* ((xpm-color-symbols
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158 (and (featurep 'xpm)
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159 (append `(("flesh" ,smiley-flesh-color)
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160 ("features" ,smiley-features-color)
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161 ("tongue" ,smiley-tongue-color))
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162 xpm-color-symbols)))
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163 (glyph (make-glyph
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164 (list
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165 (cons 'x (expand-file-name pixmap smiley-data-directory))
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166 (cons 'tty smiley)))))
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167 (setq smiley-glyph-cache (cons (cons pixmap glyph) smiley-glyph-cache))
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168 (set-glyph-face glyph 'default)
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169 glyph))))
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170
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171 ;;;###autoload
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172 (defun smiley-region (beg end)
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173 "Smilify the region between point and mark."
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174 (interactive "r")
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175 (smiley-buffer (current-buffer) beg end))
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176
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177 (defun smiley-toggle-extent (event)
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178 "Toggle smiley at given point"
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179 (interactive "e")
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180 (let* ((ant (event-glyph-extent event))
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181 (pt (event-closest-point event))
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182 ext)
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183 (if (annotationp ant)
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184 (when (extentp (setq ext (extent-property ant 'smiley-extent)))
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185 (set-extent-property ext 'invisible nil)
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186 (hide-annotation ant))
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187 (when pt
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188 (while (setq ext (extent-at pt (event-buffer event) nil ext 'at))
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189 (when (annotationp (setq ant
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190 (extent-property ext 'smiley-annotation)))
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191 (reveal-annotation ant)
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192 (set-extent-property ext 'invisible t)))))))
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193
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194 ;;;###autoload
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195 (defun smiley-buffer (&optional buffer st nd)
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196 (interactive)
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197 (when (featurep 'x)
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198 (save-excursion
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199 (when buffer
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200 (set-buffer buffer))
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201 (let ((buffer-read-only nil)
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202 (alist (if (symbolp smiley-regexp-alist)
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203 (symbol-value smiley-regexp-alist)
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204 smiley-regexp-alist))
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205 entry regexp beg group file)
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206 (goto-char (or st (point-min)))
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207 (setq beg (point))
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208 ;; loop through alist
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209 (while (setq entry (pop alist))
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210 (setq regexp (car entry)
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211 group (cadr entry)
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212 file (caddr entry))
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213 (goto-char beg)
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214 (while (re-search-forward regexp nd t)
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215 (let* ((start (match-beginning group))
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216 (end (match-end group))
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217 (glyph (smiley-create-glyph (buffer-substring start end)
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218 file)))
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219 (when glyph
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220 (mapcar 'delete-annotation (annotations-at end))
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221 (let ((ext (make-extent start end))
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222 (ant (make-annotation glyph end 'text)))
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223 ;; set text extent params
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224 (set-extent-property ext 'end-open t)
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225 (set-extent-property ext 'start-open t)
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226 (set-extent-property ext 'invisible t)
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227 (set-extent-property ext 'keymap smiley-map)
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228 (set-extent-property ext 'mouse-face smiley-mouse-face)
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229 (set-extent-property ext 'intangible t)
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230 ;; set annotation params
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231 (set-extent-property ant 'mouse-face smiley-mouse-face)
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232 (set-extent-property ant 'keymap smiley-map)
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233 ;; remember each other
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234 (set-extent-property ant 'smiley-extent ext)
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235 (set-extent-property ext 'smiley-annotation ant))
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236 (when (smiley-end-paren-p start end)
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237 (make-annotation ")" end 'text))
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238 (goto-char end)))))))))
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239
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240 (defun smiley-end-paren-p (start end)
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241 "Try to guess whether the current smiley is an end-paren smiley."
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242 (save-excursion
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243 (goto-char start)
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244 (when (and (re-search-backward "[()]" nil t)
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245 (= (following-char) ?\()
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246 (goto-char end)
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247 (or (not (re-search-forward "[()]" nil t))
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248 (= (char-after (1- (point))) ?\()))
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249 t)))
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250
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251 (defvar gnus-article-buffer)
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252 ;;;###autoload
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253 (defun gnus-smiley-display ()
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254 (interactive)
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255 (save-excursion
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256 (set-buffer gnus-article-buffer)
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257 (goto-char (point-min))
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258 ;; We skip the headers.
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259 (unless (search-forward "\n\n" nil t)
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260 (goto-char (point-max)))
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261 (smiley-buffer (current-buffer) (point))))
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262
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263 (provide 'smiley)
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264
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265 ;;; smiley.el ends here
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