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1 ;;; mu-cite.el --- yet another citation tool for GNU Emacs
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2
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3 ;; Copyright (C) 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 ;; MINOURA Makoto <minoura@netlaputa.or.jp>
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7 ;; Shuhei KOBAYASHI <shuhei-k@jaist.ac.jp>
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8 ;; Maintainer: Shuhei KOBAYASHI <shuhei-k@jaist.ac.jp>
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9 ;; Version: $Revision: 1.1.1.1 $
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10 ;; Keywords: mail, news, citation
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11
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12 ;; This file is part of tl (Tiny Library).
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13
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14 ;; This program is free software; you can redistribute it and/or
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15 ;; modify it under the terms of the GNU General Public License as
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16 ;; published by the Free Software Foundation; either version 2, or (at
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17 ;; your option) any later version.
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18
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19 ;; This program is distributed in the hope that it will be useful, but
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20 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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22 ;; General Public License for more details.
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23
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24 ;; You should have received a copy of the GNU General Public License
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25 ;; along with this program; see the file COPYING. If not, write to
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26 ;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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27 ;; Boston, MA 02111-1307, USA.
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28
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29 ;;; Commentary:
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30
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31 ;; - How to use
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32 ;; 1. bytecompile this file and copy it to the apropriate directory.
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33 ;; 2. put the following lines to your ~/.emacs:
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34 ;; for EMACS 19 or later and XEmacs
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35 ;; (autoload 'mu-cite/cite-original "mu-cite" nil t)
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36 ;; ;; for all but message-mode
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37 ;; (add-hook 'mail-citation-hook 'mu-cite/cite-original)
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38 ;; ;; for message-mode only
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39 ;; (setq message-cite-function (function mu-cite/cite-original))
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40 ;; for EMACS 18
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41 ;; ;; for all but mh-e
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42 ;; (add-hook 'mail-yank-hooks (function mu-cite/cite-original))
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43 ;; ;; for mh-e only
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44 ;; (add-hook 'mh-yank-hooks (function mu-cite/cite-original))
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45
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46 ;;; Code:
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47
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48 (require 'std11)
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49 (require 'tl-str)
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50 (require 'tl-list)
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51
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52
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53 ;;; @ version
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54 ;;;
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55
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56 (defconst mu-cite/RCS-ID
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57 "$Id: mu-cite.el,v 1.1.1.1 1996/12/18 03:55:31 steve Exp $")
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58 (defconst mu-cite/version (get-version-string mu-cite/RCS-ID))
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59
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60
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61 ;;; @ formats
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62 ;;;
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63
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64 (defvar cited-prefix-regexp "^[^ \t>]*[>|]+[ \t#]*")
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65 (defvar mu-cite/cited-prefix-regexp "\\(^[^ \t\n>]+>+[ \t]*\\|^[ \t]*$\\)")
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66
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67 (defvar mu-cite/prefix-format '(prefix-register-verbose "> ")
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68 "*List to represent citation prefix.
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69 Each elements must be string or method name.")
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70 (defvar mu-cite/top-format '(in-id
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71 ">>>>> " from " wrote:\n")
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72 "*List to represent top string of citation.
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73 Each elements must be string or method name.")
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74
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75
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76 ;;; @ hooks
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77 ;;;
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78
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79 (defvar mu-cite/pre-cite-hook nil
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80 "*List of functions called before citing a region of text.")
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81 (defvar mu-cite/post-cite-hook nil
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82 "*List of functions called after citing a region of text.")
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83
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84
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85 ;;; @ field
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86 ;;;
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87
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88 (defvar mu-cite/get-field-value-method-alist
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89 (list (cons 'mh-letter-mode
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90 (function
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91 (lambda (name)
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92 (if (and (stringp mh-sent-from-folder)
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93 (numberp mh-sent-from-msg))
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94 (save-excursion
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95 (set-buffer mh-sent-from-folder)
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96 (set-buffer mh-show-buffer)
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97 (and (boundp 'mime::preview/article-buffer)
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98 (bufferp mime::preview/article-buffer)
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99 (set-buffer mime::preview/article-buffer))
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100 (std11-field-body name)
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101 ))
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102 )))))
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103
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104 (defun mu-cite/get-field-value (name)
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105 (or (std11-field-body name)
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106 (let ((method (assq major-mode mu-cite/get-field-value-method-alist)))
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107 (if method
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108 (funcall (cdr method) name)
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109 ))))
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110
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111
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112 ;;; @ prefix registration
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113 ;;;
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114
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115 (defvar mu-cite/registration-file
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116 (expand-file-name "~/.mu-cite.el")
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117 "*The name of the user environment file for mu-cite.")
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118
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119 (defvar mu-cite/allow-null-string-registration nil
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120 "*If non-nil, null-string citation-name is registered.")
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121
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122 (defvar mu-cite/registration-symbol 'mu-cite/citation-name-alist)
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123
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124 (defvar mu-cite/citation-name-alist nil)
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125 (load mu-cite/registration-file t t t)
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126 (or (eq 'mu-cite/citation-name-alist mu-cite/registration-symbol)
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127 (setq mu-cite/citation-name-alist
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128 (symbol-value mu-cite/registration-symbol))
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129 )
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130 (defvar mu-cite/minibuffer-history nil)
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131
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132 ;; get citation-name from the database
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133 (defun mu-cite/get-citation-name (from)
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134 (assoc-value from mu-cite/citation-name-alist)
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135 )
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136
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137 ;; register citation-name to the database
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138 (defun mu-cite/add-citation-name (name from)
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139 (setq mu-cite/citation-name-alist
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140 (put-alist from name mu-cite/citation-name-alist))
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141 (mu-cite/save-to-file)
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142 )
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143
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144 ;; save to file
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145 (defun mu-cite/save-to-file ()
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146 (let* ((filename mu-cite/registration-file)
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147 (buffer (get-buffer-create " *mu-register*")))
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148 (save-excursion
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149 (set-buffer buffer)
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150 (setq buffer-file-name filename)
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151 (erase-buffer)
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152 (insert
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153 (format ";;; %s\n" (file-name-nondirectory filename)))
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154 (insert
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155 (format ";;; This file is generated automatically by mu-cite %s.\n\n"
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156 mu-cite/version))
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157 (insert (format "(setq %s\n '(" mu-cite/registration-symbol))
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158 (insert (mapconcat
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159 (function prin1-to-string)
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160 mu-cite/citation-name-alist "\n "))
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161 (insert "\n ))\n\n")
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162 (insert
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163 (format ";;; %s ends here.\n" (file-name-nondirectory filename)))
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164 (save-buffer))
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165 (kill-buffer buffer)))
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166
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167
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168 ;;; @ item methods
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169 ;;;
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170
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171 ;;; @@ ML count
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172 ;;;
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173
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174 (defvar mu-cite/ml-count-field-list
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175 '("X-Ml-Count" "X-Mail-Count" "X-Seqno" "X-Sequence" "Mailinglist-Id"))
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176
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177 (defun mu-cite/get-ml-count-method ()
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178 (let ((field-list mu-cite/ml-count-field-list))
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179 (catch 'tag
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180 (while field-list
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181 (let* ((field (car field-list))
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182 (ml-count (mu-cite/get-field-value field)))
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183 (if (and ml-count (string-match "[0-9]+" ml-count))
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184 (throw 'tag
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185 (substring ml-count
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186 (match-beginning 0)(match-end 0))
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187 ))
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188 (setq field-list (cdr field-list))
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189 )))))
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190
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191
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192 ;;; @@ prefix and registration
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193 ;;;
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194
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195 (defun mu-cite/get-prefix-method ()
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196 (or (mu-cite/get-citation-name (mu-cite/get-value 'address))
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197 ">")
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198 )
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199
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200 (defun mu-cite/get-prefix-register-method ()
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201 (let ((addr (mu-cite/get-value 'address)))
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202 (or (mu-cite/get-citation-name addr)
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203 (let ((return
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204 (read-string "Citation name? "
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205 (or (mu-cite/get-value 'x-attribution)
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206 (mu-cite/get-value 'full-name))
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207 'mu-cite/minibuffer-history)
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208 ))
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209 (if (and (or mu-cite/allow-null-string-registration
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210 (not (string-equal return "")))
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211 (y-or-n-p (format "Register \"%s\"? " return)))
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212 (mu-cite/add-citation-name return addr)
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213 )
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214 return))))
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215
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216 (defun mu-cite/get-prefix-register-verbose-method ()
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217 (let* ((addr (mu-cite/get-value 'address))
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218 (return1 (mu-cite/get-citation-name addr))
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219 (return (read-string "Citation name? "
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220 (or return1
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221 (mu-cite/get-value 'x-attribution)
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222 (mu-cite/get-value 'full-name))
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223 'mu-cite/minibuffer-history))
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224 )
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225 (if (and (or mu-cite/allow-null-string-registration
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226 (not (string-equal return "")))
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227 (not (string-equal return return1))
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228 (y-or-n-p (format "Register \"%s\"? " return))
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229 )
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230 (mu-cite/add-citation-name return addr)
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231 )
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232 return))
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233
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234
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235 ;;; @@ set up
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236 ;;;
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237
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238 (defvar mu-cite/default-methods-alist
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239 (list (cons 'from
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240 (function
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241 (lambda ()
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242 (mu-cite/get-field-value "From")
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243 )))
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244 (cons 'date
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245 (function
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246 (lambda ()
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247 (mu-cite/get-field-value "Date")
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248 )))
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249 (cons 'message-id
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250 (function
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251 (lambda ()
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252 (mu-cite/get-field-value "Message-Id")
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253 )))
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254 (cons 'subject
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255 (function
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256 (lambda ()
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257 (mu-cite/get-field-value "Subject")
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258 )))
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259 (cons 'ml-name
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260 (function
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261 (lambda ()
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262 (mu-cite/get-field-value "X-Ml-Name")
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263 )))
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264 (cons 'ml-count (function mu-cite/get-ml-count-method))
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265 (cons 'address-structure
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266 (function
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267 (lambda ()
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268 (car
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269 (std11-parse-address-string (mu-cite/get-value 'from))
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270 ))))
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271 (cons 'full-name
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272 (function
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273 (lambda ()
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274 (std11-full-name-string
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275 (mu-cite/get-value 'address-structure))
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276 )))
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277 (cons 'address
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278 (function
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279 (lambda ()
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280 (std11-address-string
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281 (mu-cite/get-value 'address-structure))
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282 )))
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283 (cons 'id
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284 (function
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285 (lambda ()
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286 (let ((ml-name (mu-cite/get-value 'ml-name)))
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287 (if ml-name
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288 (concat "["
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289 ml-name
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290 " : No."
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291 (mu-cite/get-value 'ml-count)
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292 "]")
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293 (mu-cite/get-value 'message-id)
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294 )))))
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295 (cons 'in-id
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296 (function
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297 (lambda ()
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298 (let ((id (mu-cite/get-value 'id)))
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299 (if id
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300 (format ">>>>> In %s \n" id)
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301 "")))))
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302 (cons 'prefix (function mu-cite/get-prefix-method))
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303 (cons 'prefix-register
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304 (function mu-cite/get-prefix-register-method))
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305 (cons 'prefix-register-verbose
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306 (function mu-cite/get-prefix-register-verbose-method))
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307 (cons 'x-attribution
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308 (function
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309 (lambda ()
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310 (mu-cite/get-field-value "X-Attribution")
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311 )))
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312 ))
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313
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314
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315 ;;; @ fundamentals
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316 ;;;
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317
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318 (defvar mu-cite/methods-alist nil)
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319
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320 (defun mu-cite/make-methods ()
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321 (setq mu-cite/methods-alist
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322 (copy-alist mu-cite/default-methods-alist))
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323 (run-hooks 'mu-cite/instantiation-hook)
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324 )
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325
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326 (defun mu-cite/get-value (item)
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327 (let ((ret (assoc-value item mu-cite/methods-alist)))
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328 (if (functionp ret)
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329 (prog1
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330 (setq ret (funcall ret))
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331 (set-alist 'mu-cite/methods-alist item ret)
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332 )
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333 ret)))
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334
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335 (defun mu-cite/eval-format (list)
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336 (mapconcat (function
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337 (lambda (elt)
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338 (cond ((stringp elt) elt)
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339 ((symbolp elt) (mu-cite/get-value elt))
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340 )))
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341 list "")
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342 )
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343
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344
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345 ;;; @ main function
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346 ;;;
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347
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348 (defun mu-cite/cite-original ()
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349 "Citing filter function.
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350 This is callable from the various mail and news readers' reply
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351 function according to the agreed upon standard."
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352 (interactive)
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353 (mu-cite/make-methods)
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354 (save-restriction
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355 (if (< (mark t) (point))
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356 (exchange-point-and-mark))
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357 (narrow-to-region (point)(point-max))
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358 (run-hooks 'mu-cite/pre-cite-hook)
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359 (let ((last-point (point))
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360 (top (mu-cite/eval-format mu-cite/top-format))
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361 (prefix (mu-cite/eval-format mu-cite/prefix-format))
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362 )
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363 (if (re-search-forward "^$\\|^-+$" nil nil)
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364 (forward-line 1)
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365 )
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366 (widen)
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367 (delete-region last-point (point))
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368 (insert top)
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369 (setq last-point (point))
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370 (while (< (point)(mark t))
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371 (or (looking-at mu-cite/cited-prefix-regexp)
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372 (insert prefix))
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373 (forward-line 1))
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374 (goto-char last-point)
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375 )
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376 (run-hooks 'mu-cite/post-cite-hook)
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377 ))
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378
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379
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380 ;;; @ message editing utilities
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381 ;;;
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382
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383 (defun fill-cited-region (beg end)
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384 (interactive "*r")
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385 (save-excursion
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386 (save-restriction
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387 (goto-char end)
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388 (while (not (eolp))
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389 (backward-char)
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390 )
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391 (setq end (point))
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392 (narrow-to-region beg end)
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393 (goto-char (point-min))
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394 (let* ((fill-prefix
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395 (let* ((str1 (buffer-substring
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396 (progn (beginning-of-line)(point))
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397 (progn (end-of-line)(point))
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398 ))
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399 (str2 (let ((p0 (point)))
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400 (forward-line)
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401 (if (> (count-lines p0 (point)) 0)
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402 (buffer-substring
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403 (progn (beginning-of-line)(point))
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404 (progn (end-of-line)(point))
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405 ))))
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406 (ret (string-compare-from-top str1 str2))
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407 )
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408 (if ret
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409 (nth 1 ret)
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410 (goto-char (point-min))
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411 (if (re-search-forward cited-prefix-regexp nil t)
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412 (buffer-substring (match-beginning 0) (match-end 0))
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413 ))))
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414 (pat (concat "\n" fill-prefix))
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415 )
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416 (goto-char (point-min))
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417 (while (search-forward pat nil t)
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418 (if (and (> (match-beginning 0) (point-min))
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419 (member (char-category
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420 (char-before (match-beginning 0)))
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421 '("a" "l"))
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422 )
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423 (replace-match " ")
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424 (replace-match "")
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425 )
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426 )
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427 (goto-char (point-min))
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428 (fill-region (point-min) (point-max))
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429 ))))
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430
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431 (defvar citation-mark-chars ">}|")
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432
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433 (defun compress-cited-prefix ()
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434 (interactive)
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435 (save-excursion
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436 (goto-char (point-min))
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437 (re-search-forward
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438 (concat "^" (regexp-quote mail-header-separator) "$") nil t)
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439 (while (re-search-forward
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440 (concat "^\\([ \t]*[^ \t\n" citation-mark-chars "]*["
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441 citation-mark-chars "]\\)+") nil t)
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442 (let* ((b (match-beginning 0))
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443 (e (match-end 0))
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444 (prefix (buffer-substring b e))
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445 ps pe (s 0)
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446 (nest (let ((i 0))
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447 (if (string-match "<[^<>]+>" prefix)
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448 (setq prefix (substring prefix 0 (match-beginning 0)))
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449 )
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450 (while (string-match
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451 (concat "\\([" citation-mark-chars "]+\\)[ \t]*")
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452 prefix s)
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453 (setq i (+ i (- (match-end 1)(match-beginning 1)))
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454 ps s
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455 pe (match-beginning 1)
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456 s (match-end 0)
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457 ))
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458 i)))
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459 (if (and ps (< ps pe))
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460 (progn
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461 (delete-region b e)
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462 (insert (concat (substring prefix ps pe) (make-string nest ?>)))
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463 ))))))
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464
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465 (defun replace-top-string (old new)
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466 (interactive "*sOld string: \nsNew string: ")
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467 (while (re-search-forward
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468 (concat "^" (regexp-quote old)) nil t)
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469 (replace-match new)
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470 ))
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471
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472
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473 ;;; @ end
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474 ;;;
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475
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476 (provide 'mu-cite)
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477
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478 (run-hooks 'mu-cite-load-hook)
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479
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480 ;;; mu-cite.el ends here
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