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1 ;;; rmailout.el --- "RMAIL" mail reader for Emacs: output message to a file.
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2
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3 ;; Copyright (C) 1985, 1987, 1993 Free Software Foundation, Inc.
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4
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5 ;; Maintainer: FSF
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6 ;; Keywords: mail
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7
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8 ;; This file is part of XEmacs.
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9
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10 ;; XEmacs is free software; you can redistribute it and/or modify it
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11 ;; under the terms of the GNU General Public License as published by
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12 ;; the Free Software Foundation; either version 2, or (at your option)
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13 ;; any later version.
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14
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15 ;; XEmacs is distributed in the hope that it will be useful, but
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16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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18 ;; General Public License for more details.
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19
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20 ;; You should have received a copy of the GNU General Public License
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16
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21 ;; along with XEmacs; see the file COPYING. If not, write to the
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22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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23 ;; Boston, MA 02111-1307, USA.
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0
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24
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25 ;;; Code:
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26
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27 ;; Temporary until Emacs always has this variable.
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28 (defvar rmail-delete-after-output nil
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29 "*Non-nil means automatically delete a message that is copied to a file.")
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30
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31 (defvar rmail-output-file-alist nil
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32 "*Alist matching regexps to suggested output Rmail files.
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33 This is a list of elements of the form (REGEXP . NAME-EXP).
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34 The suggestion is taken if REGEXP matches anywhere in the message buffer.
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35 NAME-EXP may be a string constant giving the file name to use,
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36 or more generally it may be any kind of expression that returns
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37 a file name as a string.")
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38
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39 ;;; There are functions elsewhere in Emacs that use this function; check
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40 ;;; them out before you change the calling method.
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41 (defun rmail-output-to-rmail-file (file-name &optional count)
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42 "Append the current message to an Rmail file named FILE-NAME.
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43 If the file does not exist, ask if it should be created.
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44 If file is being visited, the message is appended to the Emacs
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45 buffer visiting that file.
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46 If the file exists and is not an Rmail file,
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47 the message is appended in inbox format.
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48
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49 A prefix argument N says to output N consecutive messages
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50 starting with the current one. Deleted messages are skipped and don't count."
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51 (interactive
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52 (let ((default-file
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53 (let (answer tail)
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54 (setq tail rmail-output-file-alist)
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55 ;; Suggest a file based on a pattern match.
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56 (while (and tail (not answer))
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57 (save-excursion
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58 (goto-char (point-min))
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59 (if (re-search-forward (car (car tail)) nil t)
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60 (setq answer (eval (cdr (car tail)))))
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61 (setq tail (cdr tail))))
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62 ;; If not suggestions, use same file as last time.
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63 (or answer rmail-last-rmail-file))))
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64 (list (setq rmail-last-rmail-file
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70
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65 (read-file-name
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66 (concat "Output message to Rmail file: (default "
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67 (file-name-nondirectory default-file)
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68 ") ")
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69 (file-name-directory default-file)
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70 default-file))
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0
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71 (prefix-numeric-value current-prefix-arg))))
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72 (or count (setq count 1))
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73 (setq file-name
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74 (expand-file-name file-name
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75 (file-name-directory rmail-last-rmail-file)))
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76 (if (and (file-readable-p file-name) (not (rmail-file-p file-name)))
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77 (rmail-output file-name count)
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78 (rmail-maybe-set-message-counters)
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79 (setq file-name (abbreviate-file-name file-name))
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80 (or (get-file-buffer file-name)
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81 (file-exists-p file-name)
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82 (if (yes-or-no-p
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83 (concat "\"" file-name "\" does not exist, create it? "))
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84 (let ((file-buffer (create-file-buffer file-name)))
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85 (save-excursion
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86 (set-buffer file-buffer)
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87 (rmail-insert-rmail-file-header)
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88 (let ((require-final-newline nil))
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89 (write-region (point-min) (point-max) file-name t 1)))
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90 (kill-buffer file-buffer))
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91 (error "Output file does not exist")))
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92 (while (> count 0)
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93 (let (redelete)
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94 (unwind-protect
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95 (progn
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96 (save-restriction
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97 (widen)
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98 (if (rmail-message-deleted-p rmail-current-message)
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99 (progn (setq redelete t)
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100 (rmail-set-attribute "deleted" nil)))
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101 ;; Decide whether to append to a file or to an Emacs buffer.
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102 (save-excursion
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103 (let ((buf (get-file-buffer file-name))
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104 (cur (current-buffer))
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105 (beg (1+ (rmail-msgbeg rmail-current-message)))
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106 (end (1+ (rmail-msgend rmail-current-message))))
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107 (if (not buf)
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108 (append-to-file beg end file-name)
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109 (if (eq buf (current-buffer))
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110 (error "Can't output message to same file it's already in"))
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111 ;; File has been visited, in buffer BUF.
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112 (set-buffer buf)
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113 (let ((buffer-read-only nil)
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114 (msg (and (boundp 'rmail-current-message)
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115 rmail-current-message)))
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116 ;; If MSG is non-nil, buffer is in RMAIL mode.
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117 (if msg
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118 (progn
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119 (rmail-maybe-set-message-counters)
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120 (widen)
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121 (narrow-to-region (point-max) (point-max))
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122 (insert-buffer-substring cur beg end)
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123 (goto-char (point-min))
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124 (widen)
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125 (search-backward "\n\^_")
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126 (narrow-to-region (point) (point-max))
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127 (rmail-count-new-messages t)
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128 (rmail-show-message msg))
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129 ;; Output file not in rmail mode => just insert at
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130 ;; the end.
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131 (narrow-to-region (point-min) (1+ (buffer-size)))
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132 (goto-char (point-max))
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133 (insert-buffer-substring cur beg end)))))))
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134 (rmail-set-attribute "filed" t))
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135 (if redelete (rmail-set-attribute "deleted" t))))
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136 (setq count (1- count))
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137 (if rmail-delete-after-output
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138 (rmail-delete-forward)
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139 (if (> count 0)
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140 (rmail-next-undeleted-message 1))))))
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141
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142 ;; Returns t if file FILE is an Rmail file.
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143 ;;;###autoload
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144 (defun rmail-file-p (file)
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145 (let ((buf (generate-new-buffer " *rmail-file-p*")))
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146 (unwind-protect
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147 (save-excursion
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148 (set-buffer buf)
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149 (insert-file-contents file nil 0 100)
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150 (looking-at "BABYL OPTIONS:"))
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151 (kill-buffer buf))))
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152
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153 ;;; There are functions elsewhere in Emacs that use this function; check
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154 ;;; them out before you change the calling method.
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155 ;;; ####Boy, FROM-GNUS, what wonderful abstraction. You loser.
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156 (defun rmail-output (file-name &optional count noattribute from-gnus)
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157 "Append this message to Unix mail file named FILE-NAME.
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158 A prefix argument N says to output N consecutive messages
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159 starting with the current one. Deleted messages are skipped and don't count.
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160 When called from lisp code, N may be omitted.
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161
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162 If the pruned message header is shown on the current message, then
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163 messages will be appended with pruned headers; otherwise, messages
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164 will be appended with their original headers.
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165
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166 The optional third argument NOATTRIBUTE, if non-nil, says not
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167 to set the `filed' attribute, and not to display a message.
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168
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169 The optional fourth argument FROM-GNUS is set when called from GNUS."
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170 (interactive
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171 (list (setq rmail-last-file
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172 (read-file-name
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173 (concat "Output message to Unix mail file"
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174 (if rmail-last-file
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175 (concat " (default "
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176 (file-name-nondirectory rmail-last-file)
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177 "): " )
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178 ": "))
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179 (and rmail-last-file (file-name-directory rmail-last-file))
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180 rmail-last-file))
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181 (prefix-numeric-value current-prefix-arg)))
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182 (or count (setq count 1))
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183 (setq file-name
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184 (expand-file-name file-name
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185 (and rmail-last-file
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186 (file-name-directory rmail-last-file))))
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187 (if (and (file-readable-p file-name) (rmail-file-p file-name))
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188 (rmail-output-to-rmail-file file-name count)
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189 (let ((orig-count count)
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190 (rmailbuf (current-buffer))
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191 (case-fold-search t)
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192 (tembuf (get-buffer-create " rmail-output"))
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193 (original-headers-p
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194 (and (not from-gnus)
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195 (save-excursion
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196 (save-restriction
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197 (narrow-to-region (rmail-msgbeg rmail-current-message) (point-max))
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198 (goto-char (point-min))
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199 (forward-line 1)
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200 (= (following-char) ?0)))))
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201 header-beginning
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202 mail-from)
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203 (while (> count 0)
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204 (or from-gnus
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205 (setq mail-from
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206 (save-excursion
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207 (save-restriction
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208 (widen)
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209 (goto-char (rmail-msgbeg rmail-current-message))
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210 (setq header-beginning (point))
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211 (search-forward "\n*** EOOH ***\n")
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212 (narrow-to-region header-beginning (point))
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213 (mail-fetch-field "Mail-From")))))
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214 (save-excursion
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215 (set-buffer tembuf)
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216 (erase-buffer)
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217 (insert-buffer-substring rmailbuf)
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218 (insert "\n")
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219 (goto-char (point-min))
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220 (if mail-from
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221 (insert mail-from "\n")
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222 (insert "From "
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223 (mail-strip-quoted-names (or (mail-fetch-field "from")
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224 (mail-fetch-field "really-from")
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225 (mail-fetch-field "sender")
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226 "unknown"))
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227 " " (current-time-string) "\n"))
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228 ;; ``Quote'' "\nFrom " as "\n>From "
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229 ;; (note that this isn't really quoting, as there is no requirement
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230 ;; that "\n[>]+From " be quoted in the same transparent way.)
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231 (while (search-forward "\nFrom " nil t)
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232 (forward-char -5)
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233 (insert ?>))
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234 (write-region (point-min) (point-max) file-name t
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235 (if noattribute 'nomsg)))
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236 (or noattribute
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237 (if (equal major-mode 'rmail-mode)
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238 (rmail-set-attribute "filed" t)))
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239 (setq count (1- count))
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240 (or from-gnus
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241 (let ((next-message-p
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242 (if rmail-delete-after-output
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243 (rmail-delete-forward)
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244 (if (> count 0)
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245 (rmail-next-undeleted-message 1))))
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246 (num-appended (- orig-count count)))
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247 (if (and next-message-p original-headers-p)
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248 (rmail-toggle-header))
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249 (if (and (> count 0) (not next-message-p))
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250 (progn
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251 (error
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252 (save-excursion
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253 (set-buffer rmailbuf)
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254 (format "Only %d message%s appended" num-appended
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255 (if (= num-appended 1) "" "s"))))
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256 (setq count 0))))))
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257 (kill-buffer tembuf))))
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258
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259 ;;; rmailout.el ends here
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