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1 ;;; mh-funcs --- mh-e functions not everyone will use right away
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2 ;; Time-stamp: <95/08/19 16:44:06 gildea>
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3
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4 ;; Copyright (C) 1993, 1995 Free Software Foundation, Inc.
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5
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6 ;; This file is part of mh-e, part of GNU Emacs.
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7
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8 ;; GNU Emacs is free software; you can redistribute it and/or modify
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9 ;; it under the terms of the GNU General Public License as published by
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10 ;; the Free Software Foundation; either version 2, or (at your option)
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11 ;; any later version.
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12
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13 ;; GNU Emacs is distributed in the hope that it will be useful,
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14 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 ;; GNU General Public License for more details.
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17
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18 ;; You should have received a copy of the GNU General Public License
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19 ;; along with GNU Emacs; see the file COPYING. If not, write to
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20 ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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21
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22 ;;; Commentary:
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23
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24 ;;; Internal support for mh-e package.
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25 ;;; Putting these functions in a separate file lets mh-e start up faster,
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26 ;;; since less Lisp code needs to be loaded all at once.
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27
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28 ;;; Change Log:
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29
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30 ;; $Id: mh-funcs.el,v 1.1.1.1 1996/12/18 03:34:38 steve Exp $
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31
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32 ;;; Code:
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33
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34 (provide 'mh-funcs)
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35 (require 'mh-e)
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36
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37 ;;; customization
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38
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39 (defvar mh-sortm-args nil
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40 "Extra arguments to have \\[mh-sort-folder] pass to the \"sortm\" command.
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41 The arguments are passed to sortm if \\[mh-sort-folder] is given a
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42 prefix argument. Normally default arguments to sortm are specified in the
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43 MH profile.
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44 For example, '(\"-nolimit\" \"-textfield\" \"subject\") is a useful setting.")
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45
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46 (defvar mh-note-copied "C"
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47 "String whose first character is used to notate copied messages.")
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48
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49 (defvar mh-note-printed "P"
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50 "String whose first character is used to notate printed messages.")
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51
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52 ;;; functions
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53
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54 (defun mh-burst-digest ()
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55 "Burst apart the current message, which should be a digest.
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56 The message is replaced by its table of contents and the messages from the
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57 digest are inserted into the folder after that message."
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58 (interactive)
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59 (let ((digest (mh-get-msg-num t)))
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60 (mh-process-or-undo-commands mh-current-folder)
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61 (mh-set-folder-modified-p t) ; lock folder while bursting
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62 (message "Bursting digest...")
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63 (mh-exec-cmd "burst" mh-current-folder digest "-inplace")
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64 (with-mh-folder-updating (t)
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65 (beginning-of-line)
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66 (delete-region (point) (point-max)))
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67 (mh-regenerate-headers (format "%d-last" digest) t)
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68 (mh-goto-cur-msg)
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69 (message "Bursting digest...done")))
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70
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71
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72 (defun mh-copy-msg (msg-or-seq folder)
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73 "Copy the specified MESSAGE(s) to another FOLDER without deleting them.
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74 Default is the displayed message. If optional prefix argument is
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75 provided, then prompt for the message sequence."
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76 (interactive (list (if current-prefix-arg
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77 (mh-read-seq-default "Copy" t)
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78 (mh-get-msg-num t))
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79 (mh-prompt-for-folder "Copy to" "" t)))
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80 (mh-exec-cmd "refile" msg-or-seq "-link" "-src" mh-current-folder folder)
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81 (if (numberp msg-or-seq)
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82 (mh-notate msg-or-seq mh-note-copied mh-cmd-note)
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83 (mh-notate-seq msg-or-seq mh-note-copied mh-cmd-note)))
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84
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85 (defun mh-kill-folder ()
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86 "Remove the current folder."
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87 (interactive)
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88 (if (or mh-do-not-confirm
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89 (yes-or-no-p (format "Remove folder %s? " mh-current-folder)))
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90 (let ((folder mh-current-folder))
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91 (if (null mh-folder-list)
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92 (mh-set-folder-list))
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93 (mh-set-folder-modified-p t) ; lock folder to kill it
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94 (mh-exec-cmd-daemon "rmf" folder)
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95 (setq mh-folder-list
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96 (delq (assoc folder mh-folder-list) mh-folder-list))
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97 (run-hooks 'mh-folder-list-change-hook)
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98 (message "Folder %s removed" folder)
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99 (mh-set-folder-modified-p nil) ; so kill-buffer doesn't complain
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100 (if (get-buffer mh-show-buffer)
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101 (kill-buffer mh-show-buffer))
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102 (kill-buffer folder))
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103 (message "Folder not removed")))
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104
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105
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106 (defun mh-list-folders ()
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107 "List mail folders."
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108 (interactive)
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109 (with-output-to-temp-buffer mh-temp-buffer
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110 (save-excursion
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111 (switch-to-buffer mh-temp-buffer)
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112 (erase-buffer)
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113 (message "Listing folders...")
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114 (mh-exec-cmd-output "folders" t (if mh-recursive-folders
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115 "-recurse"
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116 "-norecurse"))
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117 (goto-char (point-min))
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118 (message "Listing folders...done"))))
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119
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120
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121 (defun mh-pack-folder (range)
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122 "Renumber the messages of a folder to be 1..n.
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123 First, offer to execute any outstanding commands for the current folder.
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124 If optional prefix argument provided, prompt for the RANGE of messages
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125 to display after packing. Otherwise, show the entire folder."
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126 (interactive (list (if current-prefix-arg
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127 (mh-read-msg-range
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128 "Range to scan after packing [all]? ")
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129 "all")))
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130 (mh-pack-folder-1 range)
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131 (mh-goto-cur-msg)
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132 (message "Packing folder...done"))
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133
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134
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135 (defun mh-pack-folder-1 (range)
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136 ;; Close and pack the current folder.
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137 (mh-process-or-undo-commands mh-current-folder)
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138 (message "Packing folder...")
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139 (mh-set-folder-modified-p t) ; lock folder while packing
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140 (save-excursion
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141 (mh-exec-cmd-quiet t "folder" mh-current-folder "-pack"
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142 "-norecurse" "-fast"))
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143 (mh-regenerate-headers range))
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144
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145
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146 (defun mh-pipe-msg (command include-headers)
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147 "Pipe the current message through the given shell COMMAND.
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148 If INCLUDE-HEADERS (prefix argument) is provided, send the entire message.
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149 Otherwise just send the message's body without the headers."
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150 (interactive
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151 (list (read-string "Shell command on message: ") current-prefix-arg))
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152 (let ((msg-file-to-pipe (mh-msg-filename (mh-get-msg-num t)))
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153 (message-directory default-directory))
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154 (save-excursion
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155 (set-buffer (get-buffer-create mh-temp-buffer))
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156 (erase-buffer)
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157 (insert-file-contents msg-file-to-pipe)
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158 (goto-char (point-min))
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159 (if (not include-headers) (search-forward "\n\n"))
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160 (let ((default-directory message-directory))
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161 (shell-command-on-region (point) (point-max) command nil)))))
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162
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163
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164 (defun mh-page-digest ()
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165 "Advance displayed message to next digested message."
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166 (interactive)
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167 (mh-in-show-buffer (mh-show-buffer)
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168 ;; Go to top of screen (in case user moved point).
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169 (move-to-window-line 0)
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170 (let ((case-fold-search nil))
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171 ;; Search for blank line and then for From:
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172 (or (and (search-forward "\n\n" nil t)
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173 (re-search-forward "^From:" nil t))
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174 (error "No more messages in digest")))
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175 ;; Go back to previous blank line, then forward to the first non-blank.
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176 (search-backward "\n\n" nil t)
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177 (forward-line 2)
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178 (mh-recenter 0)))
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179
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180
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181 (defun mh-page-digest-backwards ()
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182 "Back up displayed message to previous digested message."
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183 (interactive)
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184 (mh-in-show-buffer (mh-show-buffer)
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185 ;; Go to top of screen (in case user moved point).
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186 (move-to-window-line 0)
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187 (let ((case-fold-search nil))
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188 (beginning-of-line)
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189 (or (and (search-backward "\n\n" nil t)
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190 (re-search-backward "^From:" nil t))
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191 (error "No previous message in digest")))
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192 ;; Go back to previous blank line, then forward to the first non-blank.
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193 (if (search-backward "\n\n" nil t)
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194 (forward-line 2))
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195 (mh-recenter 0)))
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196
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197
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198 (defun mh-print-msg (msg-or-seq)
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199 "Print MESSAGE(s) (default: displayed message) on printer.
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200 If optional prefix argument provided, then prompt for the message sequence.
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201 The variable mh-lpr-command-format is used to generate the print command.
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202 The messages are formatted by mhl. See the variable mhl-formfile."
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203 (interactive (list (if current-prefix-arg
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204 (reverse (mh-seq-to-msgs
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205 (mh-read-seq-default "Print" t)))
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206 (mh-get-msg-num t))))
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207 (if (numberp msg-or-seq)
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208 (message "Printing message...")
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209 (message "Printing sequence..."))
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210 (let ((print-command
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211 (if (numberp msg-or-seq)
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212 (format "%s -nobell -clear %s %s | %s"
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213 (expand-file-name "mhl" mh-lib)
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214 (mh-msg-filename msg-or-seq)
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215 (if (stringp mhl-formfile)
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216 (format "-form %s" mhl-formfile)
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217 "")
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218 (format mh-lpr-command-format
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219 (if (numberp msg-or-seq)
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220 (format "%s/%d" mh-current-folder
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221 msg-or-seq)
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222 (format "Sequence from %s" mh-current-folder))))
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223 (format "(scan -clear %s ; %s -nobell -clear %s %s) | %s"
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224 (mapconcat (function (lambda (msg) msg)) msg-or-seq " ")
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225 (expand-file-name "mhl" mh-lib)
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226 (if (stringp mhl-formfile)
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227 (format "-form %s" mhl-formfile)
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228 "")
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229 (mh-msg-filenames msg-or-seq)
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230 (format mh-lpr-command-format
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231 (if (numberp msg-or-seq)
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232 (format "%s/%d" mh-current-folder
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233 msg-or-seq)
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234 (format "Sequence from %s"
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235 mh-current-folder)))))))
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236 (if mh-print-background
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237 (mh-exec-cmd-daemon shell-file-name "-c" print-command)
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238 (call-process shell-file-name nil nil nil "-c" print-command))
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239 (if (numberp msg-or-seq)
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240 (mh-notate msg-or-seq mh-note-printed mh-cmd-note)
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241 (mh-notate-seq msg-or-seq mh-note-printed mh-cmd-note))
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242 (mh-add-msgs-to-seq msg-or-seq 'printed t)
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243 (if (numberp msg-or-seq)
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244 (message "Printing message...done")
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245 (message "Printing sequence...done"))))
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246
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247
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248 (defun mh-msg-filenames (msgs &optional folder)
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249 ;; Return a list of file names for MSGS in FOLDER (default current folder).
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250 (mapconcat (function (lambda (msg) (mh-msg-filename msg folder))) msgs " "))
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251
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252
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253 (defun mh-sort-folder (&optional extra-args)
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254 "Sort the messages in the current folder by date.
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255 Calls the MH program sortm to do the work.
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256 The arguments in the list mh-sortm-args are passed to sortm
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257 if this function is passed an argument."
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258 (interactive "P")
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259 (mh-process-or-undo-commands mh-current-folder)
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260 (setq mh-next-direction 'forward)
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261 (mh-set-folder-modified-p t) ; lock folder while sorting
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262 (message "Sorting folder...")
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263 (mh-exec-cmd "sortm" mh-current-folder (if extra-args mh-sortm-args))
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264 (message "Sorting folder...done")
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265 (mh-scan-folder mh-current-folder "all"))
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266
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267
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268 (defun mh-undo-folder (&rest ignore)
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269 "Undo all pending deletes and refiles in current folder."
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270 (interactive)
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271 (cond ((or mh-do-not-confirm
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272 (yes-or-no-p "Undo all commands in folder? "))
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273 (setq mh-delete-list nil
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274 mh-refile-list nil
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275 mh-seq-list nil
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276 mh-next-direction 'forward)
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277 (with-mh-folder-updating (nil)
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278 (mh-unmark-all-headers t)))
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279 (t
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280 (message "Commands not undone.")
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281 (sit-for 2))))
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282
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283
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284 (defun mh-store-msg (directory)
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285 "Store the file(s) contained in the current message into DIRECTORY.
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286 The message can contain a shar file or uuencoded file.
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287 Default directory is the last directory used, or initially the value of
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288 mh-store-default-directory or the current directory."
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289 (interactive (list (let ((udir (or mh-store-default-directory default-directory)))
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290 (read-file-name "Store message in directory: "
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291 udir udir nil))))
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292 (let ((msg-file-to-store (mh-msg-filename (mh-get-msg-num t))))
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293 (save-excursion
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294 (set-buffer (get-buffer-create mh-temp-buffer))
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295 (erase-buffer)
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296 (insert-file-contents msg-file-to-store)
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297 (mh-store-buffer directory))))
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298
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299 (defun mh-store-buffer (directory)
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300 "Store the file(s) contained in the current buffer into DIRECTORY.
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301 The buffer can contain a shar file or uuencoded file.
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302 Default directory is the last directory used, or initially the value of
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303 `mh-store-default-directory' or the current directory."
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304 (interactive (list (let ((udir (or mh-store-default-directory default-directory)))
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305 (read-file-name "Store buffer in directory: "
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306 udir udir nil))))
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307 (let ((store-directory (expand-file-name directory))
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308 (sh-start (save-excursion
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309 (goto-char (point-min))
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310 (if (re-search-forward
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311 "^#![ \t]*/bin/sh\\|^#\\|^: " nil t)
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312 (progn
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313 ;; The "cut here" pattern was removed from above
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314 ;; because it seemed to hurt more than help.
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315 ;; But keep this to make it easier to put it back.
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316 (if (looking-at "^[^a-z0-9\"]*cut here\\b")
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317 (forward-line 1))
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318 (beginning-of-line)
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319 (if (looking-at "^[#:]....+\n\\( ?\n\\)?end$")
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320 nil ;most likely end of a uuencode
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321 (point))))))
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322 (log-buffer (get-buffer-create "*Store Output*"))
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323 (command "sh")
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324 (uudecode-filename "(unknown filename)"))
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325 (if (not sh-start)
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326 (save-excursion
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327 (goto-char (point-min))
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328 (if (re-search-forward "^begin [0-7]+ " nil t)
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329 (setq uudecode-filename
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330 (buffer-substring (point)
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331 (progn (end-of-line) (point)))))))
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332 (save-excursion
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333 (set-buffer log-buffer)
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334 (erase-buffer)
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335 (if (not (file-directory-p store-directory))
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336 (progn
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337 (insert "mkdir " directory "\n")
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338 (call-process "mkdir" nil log-buffer t store-directory)))
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339 (insert "cd " directory "\n")
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340 (setq mh-store-default-directory directory)
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341 (if (not sh-start)
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342 (progn
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343 (setq command "uudecode")
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344 (insert uudecode-filename " being uudecoded...\n"))))
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345 (set-window-start (display-buffer log-buffer) 0) ;watch progress
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346 (let (value)
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347 (let ((default-directory (file-name-as-directory store-directory)))
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348 (setq value (call-process-region sh-start (point-max) command
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349 nil log-buffer t)))
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350 (set-buffer log-buffer)
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351 (mh-handle-process-error command value))
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352 (insert "\n(mh-store finished)\n")))
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353
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