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1 ;;; tm-play.el --- decoder for tm-view.el
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2
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3 ;; Copyright (C) 1994,1995,1996 Free Software Foundation, Inc.
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4
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5 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
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6 ;; Created: 1995/9/26 (separated from tm-view.el)
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7 ;; Version: $Id: tm-play.el,v 1.1.1.1 1996/12/18 03:55:32 steve Exp $
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8 ;; Keywords: mail, news, MIME, multimedia
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9
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10 ;; This file is part of tm (Tools for MIME).
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11
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12 ;; This program is free software; you can redistribute it and/or
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13 ;; modify it under the terms of the GNU General Public License as
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14 ;; published by the Free Software Foundation; either version 2, or (at
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15 ;; your option) any later version.
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16
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17 ;; This program is distributed in the hope that it will be useful, but
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18 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 ;; General Public License for more details.
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21
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22 ;; You should have received a copy of the GNU General Public License
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23 ;; along with GNU Emacs; see the file COPYING. If not, write to the
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24 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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25 ;; Boston, MA 02111-1307, USA.
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26
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27 ;;; Code:
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28
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29 (require 'tm-view)
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30
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31 (defvar mime-viewer/external-progs "/usr/local/share/tm"
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32 "*Directory containing tm external methods.")
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33
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34 (add-to-list 'exec-path mime-viewer/external-progs)
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35
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36 (let ((paths (parse-colon-path (getenv "PATH"))))
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37 (or (member mime-viewer/external-progs paths)
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38 (setenv "PATH"
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39 (mapconcat (function identity)
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40 (append paths (list mime-viewer/external-progs))
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41 path-separator))
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42 ))
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43
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44
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45 ;;; @ content decoder
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46 ;;;
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47
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48 (defvar mime-preview/after-decoded-position nil)
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49
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50 (defun mime-preview/decode-content ()
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51 (interactive)
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52 (let ((pc (mime-preview/point-pcinfo (point))))
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53 (if pc
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54 (let ((the-buf (current-buffer)))
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55 (setq mime-preview/after-decoded-position (point))
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56 (set-buffer (mime::preview-content-info/buffer pc))
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57 (mime-article/decode-content
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58 (mime::preview-content-info/content-info pc))
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59 (if (eq (current-buffer)
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60 (mime::preview-content-info/buffer pc))
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61 (progn
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62 (set-buffer the-buf)
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63 (goto-char mime-preview/after-decoded-position)
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64 ))
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65 ))))
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66
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67 (defun mime-article/decode-content (cinfo)
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68 (let ((beg (mime::content-info/point-min cinfo))
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69 (end (mime::content-info/point-max cinfo))
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70 (ctype (or (mime::content-info/type cinfo) "text/plain"))
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71 (params (mime::content-info/parameters cinfo))
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72 (encoding (mime::content-info/encoding cinfo))
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73 )
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74 ;; Check for VM
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75 (if (< beg (point-min))
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76 (setq beg (point-min))
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77 )
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78 (if (< (point-max) end)
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79 (setq end (point-max))
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80 )
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81 (let (method cal ret)
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82 (setq cal (list* (cons 'type ctype)
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83 (cons 'encoding encoding)
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84 (cons 'major-mode major-mode)
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85 params))
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86 (if mime-viewer/decoding-mode
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87 (setq cal (cons
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88 (cons 'mode mime-viewer/decoding-mode)
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89 cal))
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90 )
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91 (setq ret (mime/get-content-decoding-alist cal))
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92 (setq method (cdr (assq 'method ret)))
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93 (cond ((and (symbolp method)
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94 (fboundp method))
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95 (funcall method beg end ret)
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96 )
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97 ((and (listp method)(stringp (car method)))
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98 (mime-article/start-external-method-region beg end ret)
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99 )
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100 (t
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101 (mime-article/show-output-buffer
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102 "No method are specified for %s\n" ctype)
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103 ))
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104 )
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105 ))
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106
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107 (defun field-unifier-for-mode (a b)
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108 (let ((va (cdr a)))
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109 (if (if (consp va)
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110 (member (cdr b) va)
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111 (equal va (cdr b))
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112 )
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113 (list nil b nil)
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114 )))
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115
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116 (defun mime/get-content-decoding-alist (al)
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117 (get-unified-alist mime/content-decoding-condition al)
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118 )
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119
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120
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121 ;;; @ external decoder
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122 ;;;
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123
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124 (defun mime-article/start-external-method-region (beg end cal)
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125 (save-excursion
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126 (save-restriction
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127 (narrow-to-region beg end)
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128 (goto-char beg)
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129 (let ((method (cdr (assoc 'method cal)))
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130 (name (mime-article/get-filename cal))
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131 )
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132 (if method
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133 (let ((file (make-temp-name
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134 (expand-file-name "TM" mime/tmp-dir)))
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135 b args)
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136 (if (nth 1 method)
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137 (setq b beg)
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138 (setq b
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139 (if (re-search-forward "^$" nil t)
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140 (1+ (match-end 0))
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141 (point-min)
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142 ))
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143 )
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144 (goto-char b)
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145 (write-region b end file)
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146 (message "External method is starting...")
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147 (setq cal (put-alist
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148 'name (replace-as-filename name) cal))
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149 (setq cal (put-alist 'file file cal))
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150 (setq args (nconc
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151 (list (car method)
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152 mime/output-buffer-name (car method)
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153 )
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154 (mime-article/make-method-args cal
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155 (cdr (cdr method)))
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156 ))
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157 (apply (function start-process) args)
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158 (mime-article/show-output-buffer)
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159 ))
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160 ))))
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161
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162 (defun mime-article/make-method-args (cal format)
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163 (mapcar (function
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164 (lambda (arg)
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165 (if (stringp arg)
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166 arg
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167 (let* ((item (eval arg))
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168 (ret (cdr (assoc item cal)))
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169 )
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170 (if ret
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171 ret
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172 (if (eq item 'encoding)
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173 "7bit"
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174 ""))
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175 ))
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176 ))
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177 format))
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178
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179 (defun mime-article/show-output-buffer (&rest forms)
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180 (get-buffer-create mime/output-buffer-name)
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181 (let ((the-win (selected-window))
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182 (win (get-buffer-window mime/output-buffer-name))
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183 )
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184 (or win
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185 (if (and mime/output-buffer-window-is-shared-with-bbdb
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186 (boundp 'bbdb-buffer-name)
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187 (setq win (get-buffer-window bbdb-buffer-name))
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188 )
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189 (set-window-buffer win mime/output-buffer-name)
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190 (select-window (get-buffer-window mime::article/preview-buffer))
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191 (setq win (split-window-vertically (/ (* (window-height) 3) 4)))
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192 (set-window-buffer win mime/output-buffer-name)
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193 ))
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194 (select-window win)
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195 (goto-char (point-max))
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196 (if forms
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197 (insert (apply (function format) forms))
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198 )
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199 (select-window the-win)
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200 ))
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201
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202
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203 ;;; @ file name
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204 ;;;
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205
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206 (defvar mime-viewer/file-name-char-regexp "[A-Za-z0-9+_-]")
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207
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208 (defvar mime-viewer/file-name-regexp-1
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209 (concat mime-viewer/file-name-char-regexp "+\\."
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210 mime-viewer/file-name-char-regexp "+"))
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211
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212 (defvar mime-viewer/file-name-regexp-2
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213 (concat (regexp-* mime-viewer/file-name-char-regexp)
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214 "\\(\\." mime-viewer/file-name-char-regexp "+\\)*"))
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215
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216 (defun mime-article/get-original-filename (param &optional encoding)
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217 (or (mime-article/get-uu-filename param encoding)
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218 (let (ret)
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219 (or (if (or (and (setq ret (mime/Content-Disposition))
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220 (setq ret (assoc "filename" (cdr ret)))
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221 )
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222 (setq ret (assoc "name" param))
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223 (setq ret (assoc "x-name" param))
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224 )
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225 (std11-strip-quoted-string (cdr ret))
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226 )
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227 (if (setq ret
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228 (std11-find-field-body '("Content-Description"
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229 "Subject")))
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230 (if (or (string-match mime-viewer/file-name-regexp-1 ret)
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231 (string-match mime-viewer/file-name-regexp-2 ret))
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232 (substring ret (match-beginning 0)(match-end 0))
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233 ))
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234 ))
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235 ))
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236
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237 (defun mime-article/get-filename (param)
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238 (replace-as-filename (mime-article/get-original-filename param))
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239 )
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240
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241
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242 ;;; @ mail/news message
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243 ;;;
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244
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245 (defun mime-viewer/quitting-method-for-mime/show-message-mode ()
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246 (let ((mother mime::preview/mother-buffer)
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247 (win-conf mime::preview/original-window-configuration)
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248 )
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249 (kill-buffer
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250 (mime::preview-content-info/buffer (car mime::preview/content-list)))
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251 (mime-viewer/kill-buffer)
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252 (set-window-configuration win-conf)
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253 (pop-to-buffer mother)
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254 ;;(goto-char (point-min))
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255 ;;(mime-viewer/up-content)
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256 ))
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257
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258 (defun mime-article/view-message/rfc822 (beg end cal)
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259 (let* ((cnum (mime-article/point-content-number beg))
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260 (cur-buf (current-buffer))
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261 (new-name (format "%s-%s" (buffer-name) cnum))
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262 (mother mime::article/preview-buffer)
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263 (code-converter
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264 (or (cdr (assq major-mode mime-viewer/code-converter-alist))
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265 'mime-viewer/default-code-convert-region))
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266 str)
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267 (setq str (buffer-substring beg end))
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268 (switch-to-buffer new-name)
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269 (erase-buffer)
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270 (insert str)
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271 (goto-char (point-min))
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272 (if (re-search-forward "^\n" nil t)
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273 (delete-region (point-min) (match-end 0))
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274 )
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275 (setq major-mode 'mime/show-message-mode)
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276 (setq mime::article/code-converter code-converter)
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277 (mime/viewer-mode mother)
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278 ))
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279
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280
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281 ;;; @ message/partial
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282 ;;;
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283
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284 (defvar mime-article/coding-system-alist
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285 (and (boundp 'MULE)
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286 '((mh-show-mode . *noconv*)
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287 (t . *ctext*)
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288 )))
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289
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290 (defvar mime-article/kanji-code-alist
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291 (and (boundp 'NEMACS)
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292 '((mh-show-mode . nil)
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293 (t . 2)
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294 )))
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295
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296 (defun mime-article/decode-message/partial (beg end cal)
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297 (goto-char beg)
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298 (let* ((root-dir (expand-file-name
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299 (concat "m-prts-" (user-login-name)) mime/tmp-dir))
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300 (id (cdr (assoc "id" cal)))
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301 (number (cdr (assoc "number" cal)))
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302 (total (cdr (assoc "total" cal)))
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303 (the-buf (current-buffer))
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304 file
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305 (mother mime::article/preview-buffer)
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306 (win-conf (save-excursion
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307 (set-buffer mother)
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308 mime::preview/original-window-configuration))
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309 )
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310 (if (not (file-exists-p root-dir))
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311 (make-directory root-dir)
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312 )
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313 (setq id (replace-as-filename id))
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314 (setq root-dir (concat root-dir "/" id))
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315 (if (not (file-exists-p root-dir))
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316 (make-directory root-dir)
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317 )
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318 (setq file (concat root-dir "/FULL"))
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319 (if (not (file-exists-p file))
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320 (progn
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321 (re-search-forward "^$")
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322 (goto-char (1+ (match-end 0)))
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323 (setq file (concat root-dir "/" number))
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324 (let ((file-coding-system
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325 (cdr
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326 (or (assq major-mode mime-article/coding-system-alist)
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327 (assq t mime-article/coding-system-alist)
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328 )))
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329 (kanji-fileio-code
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330 (cdr
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331 (or (assq major-mode mime-article/kanji-code-alist)
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332 (assq t mime-article/kanji-code-alist)
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333 )))
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334 )
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335 (write-region (point) (point-max) file)
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336 )
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337 (if (get-buffer mime/temp-buffer-name)
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338 (kill-buffer mime/temp-buffer-name)
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339 )
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340 (switch-to-buffer mime/temp-buffer-name)
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341 (let ((i 1)
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342 (max (string-to-int total))
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343 (file-coding-system-for-read (if (boundp 'MULE)
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344 *noconv*))
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345 kanji-fileio-code)
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346 (catch 'tag
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347 (while (<= i max)
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348 (setq file (concat root-dir "/" (int-to-string i)))
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349 (if (not (file-exists-p file))
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350 (progn
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351 (switch-to-buffer the-buf)
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352 (throw 'tag nil)
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353 ))
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354 (insert-file-contents file)
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355 (goto-char (point-max))
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356 (setq i (1+ i))
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357 )
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358 ;;(delete-other-windows)
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359 (let ((buf (current-buffer)))
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360 (write-file (concat root-dir "/FULL"))
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361 (set-window-configuration win-conf)
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362 (let ((win (get-buffer-window mother)))
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363 (if win
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364 (select-window win)
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365 ))
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366 (set-window-buffer (selected-window) buf)
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367 ;;(set-window-buffer buf)
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368 (setq major-mode 'mime/show-message-mode)
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369 )
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370 (mime/viewer-mode mother)
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371 (pop-to-buffer (current-buffer))
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372 ))
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373 )
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374 (progn
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375 ;;(delete-other-windows)
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376 (set-window-configuration win-conf)
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377 (select-window (or (get-buffer-window mother)
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378 (get-buffer-window
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379 (save-excursion
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380 (set-buffer mother)
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381 mime::preview/article-buffer))
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382 (get-largest-window)
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383 ))
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384 (as-binary-input-file
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385 (set-buffer (get-buffer-create "FULL"))
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386 (insert-file-contents file)
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387 )
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388 (setq major-mode 'mime/show-message-mode)
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389 (mime/viewer-mode mother)
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390 ;;(pop-to-buffer (current-buffer))
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391 ))
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392 ))
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393
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394
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395 ;;; @ rot13-47
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396 ;;;
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397
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398 (defun mime-article/decode-caesar (beg end cal)
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399 (let* ((cnum (mime-article/point-content-number beg))
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400 (cur-buf (current-buffer))
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401 (new-name (format "%s-%s" (buffer-name) cnum))
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402 (mother mime::article/preview-buffer)
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403 (charset (cdr (assoc "charset" cal)))
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404 (encoding (cdr (assq 'encoding cal)))
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405 (mode major-mode)
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406 str)
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407 (setq str (buffer-substring beg end))
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408 (switch-to-buffer new-name)
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409 (setq buffer-read-only nil)
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410 (erase-buffer)
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411 (insert str)
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412 (goto-char (point-min))
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413 (if (re-search-forward "^\n" nil t)
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414 (delete-region (point-min) (match-end 0))
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415 )
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416 (let ((m (cdr (or (assq mode mime-viewer/code-converter-alist)
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417 (assq t mime-viewer/code-converter-alist)))))
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418 (and (functionp m)
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419 (funcall m charset encoding)
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420 ))
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421 (save-excursion
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422 (set-mark (point-min))
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423 (goto-char (point-max))
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424 (tm:caesar-region)
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425 )
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426 (view-mode)
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427 ))
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428
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429
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430 ;;; @ end
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431 ;;;
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432
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433 (provide 'tm-play)
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434
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435 ;;; tm-play.el ends here
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