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428
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1 ;;; lisp-mnt.el --- minor mode for Emacs Lisp maintainers
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2
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3 ;; Copyright (C) 1992, 1994 Free Software Foundation, Inc.
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4
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5 ;; Author: Eric S. Raymond <esr@snark.thyrsus.com>
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6 ;; Maintainer: Eric S. Raymond <esr@snark.thyrsus.com>
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7 ;; Created: 14 Jul 1992
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8 ;; Keywords: docs, maint
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9 ;; X-Modified-by: Bob Weiner <weiner@beopen.com>, 4/14/95, to support
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10 ;; InfoDock headers.
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11 ;; X-Bogus-Bureaucratic-Cruft: Gruad will get you if you don't watch out!
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12
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13 ;; This file is part of XEmacs.
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14
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15 ;; XEmacs is free software; you can redistribute it and/or modify it
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16 ;; under the terms of the GNU General Public License as published by
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17 ;; the Free Software Foundation; either version 2, or (at your option)
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18 ;; any later version.
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19
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20 ;; XEmacs is distributed in the hope that it will be useful, but
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21 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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22 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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23 ;; General Public License for more details.
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24
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25 ;; You should have received a copy of the GNU General Public License
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26 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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27 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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28 ;; 02111-1307, USA.
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29
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30 ;;; Synched up with: FSF 20.2.
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31
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32 ;;; Commentary:
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33
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34 ;; This minor mode adds some services to Emacs-Lisp editing mode.
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35 ;;
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36 ;; First, it knows about the header conventions for library packages.
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37 ;; One entry point supports generating synopses from a library directory.
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38 ;; Another can be used to check for missing headers in library files.
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39 ;;
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40 ;; Another entry point automatically addresses bug mail to a package's
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41 ;; maintainer or author.
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42
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43 ;; This file can be loaded by your lisp-mode-hook. Have it (require 'lisp-mnt)
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44
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45 ;; This file is an example of the header conventions. Note the following
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46 ;; features:
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47 ;;
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48 ;; * Header line --- makes it possible to extract a one-line summary of
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49 ;; the package's uses automatically for use in library synopses, KWIC
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50 ;; indexes and the like.
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51 ;;
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52 ;; Format is three semicolons, followed by the filename, followed by
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53 ;; three dashes, followed by the summary. All fields space-separated.
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54 ;;
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55 ;; * Author line --- contains the name and net address of at least
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56 ;; the principal author.
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57 ;;
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58 ;; If there are multiple authors, they should be listed on continuation
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59 ;; lines led by ;;<TAB><TAB> (or multiple blanks), like this:
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60 ;;
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61 ;; ;; Author: Ashwin Ram <Ram-Ashwin@cs.yale.edu>
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62 ;; ;; Dave Sill <de5@ornl.gov>
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63 ;; ;; David Lawrence <tale@pawl.rpi.edu>
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64 ;; ;; Noah Friedman <friedman@ai.mit.edu>
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65 ;; ;; Joe Wells <jbw@maverick.uswest.com>
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66 ;; ;; Dave Brennan <brennan@hal.com>
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67 ;; ;; Eric Raymond <esr@snark.thyrsus.com>
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68 ;;
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69 ;; This field may have some special values; notably "FSF", meaning
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70 ;; "Free Software Foundation".
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71 ;;
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72 ;; * Maintainer line --- should be a single name/address as in the Author
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73 ;; line, or an address only, or the string "FSF". If there is no maintainer
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74 ;; line, the person(s) in the Author field are presumed to be it. The example
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75 ;; in this file is mildly bogus because the maintainer line is redundant.
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76 ;; The idea behind these two fields is to be able to write a Lisp function
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77 ;; that does "send mail to the author" without having to mine the name out by
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78 ;; hand. Please be careful about surrounding the network address with <> if
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79 ;; there's also a name in the field.
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80 ;;
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81 ;; * Created line --- optional, gives the original creation date of the
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82 ;; file. For historical interest, basically.
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83 ;;
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84 ;; * Version line --- intended to give the reader a clue if they're looking
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85 ;; at a different version of the file than the one they're accustomed to. This
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86 ;; may be an RCS or SCCS header.
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87 ;;
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88 ;; * Adapted-By line --- this is for FSF's internal use. The person named
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89 ;; in this field was the one responsible for installing and adapting the
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90 ;; package for the distribution. (This file doesn't have one because the
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91 ;; author *is* one of the maintainers.)
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92 ;;
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93 ;; * Keywords line --- used by the finder code (now under construction)
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94 ;; for finding Emacs Lisp code related to a topic.
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95 ;;
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96 ;; * X-Bogus-Bureaucratic-Cruft line --- this is a joke and an example
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97 ;; of a comment header. Headers starting with `X-' should never be used
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98 ;; for any real purpose; this is the way to safely add random headers
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99 ;; without invoking the wrath of any program.
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100 ;;
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101 ;; * Commentary line --- enables Lisp code to find the developer's and
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102 ;; maintainers' explanations of the package internals.
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103 ;;
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104 ;; * Change log line --- optional, exists to terminate the commentary
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105 ;; section and start a change-log part, if one exists.
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106 ;;
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107 ;; * Code line --- exists so Lisp can know where commentary and/or
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108 ;; change-log sections end.
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109 ;;
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110 ;; * Footer line --- marks end-of-file so it can be distinguished from
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111 ;; an expanded formfeed or the results of truncation.
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112
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113 ;;; Change Log:
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114
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115 ;; Tue Jul 14 23:44:17 1992 ESR
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116 ;; * Created.
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117
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118 ;;; Code:
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119
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120 (require 'picture) ; provides move-to-column-force
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121 ;(require 'emacsbug) ; XEmacs, not needed for bytecompilation
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122
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123 ;;; Variables:
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124
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125 (defvar lm-header-prefix "^;;*[ \t]+\\(@\(#\)\\)?[ \t]*\\([\$]\\)?"
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126 "Prefix that is ignored before the tag.
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127 For example, you can write the 1st line synopsis string and headers like this
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128 in your Lisp package:
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129
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130 ;; @(#) package.el -- package description
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131 ;;
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132 ;; @(#) $Maintainer: Person Foo Bar $
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133
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134 The @(#) construct is used by unix what(1) and
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135 then $identifier: doc string $ is used by GNU ident(1)")
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136
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137 (defvar lm-comment-column 16
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138 "Column used for placing formatted output.")
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139
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140 (defvar lm-commentary-header "Commentary\\|Documentation"
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141 "Regexp which matches start of documentation section.")
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142
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143 (defvar lm-history-header "Change Log\\|History"
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144 "Regexp which matches the start of code log section.")
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145
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146 ;;; Functions:
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147
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148 ;; These functions all parse the headers of the current buffer
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149
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150 (defsubst lm-get-header-re (header &optional mode)
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151 "Returns regexp for matching HEADER.
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152 If called with optional MODE and with value `section',
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153 return section regexp instead."
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154 (cond ((eq mode 'section)
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155 (concat "^;;;;* " header ":[ \t]*$"))
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156 (t
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157 (concat lm-header-prefix header ":[ \t]*"))))
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158
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159 (defsubst lm-get-package-name ()
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160 "Returns package name by looking at the first line."
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161 (save-excursion
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162 (goto-char (point-min))
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163 (if (and (looking-at (concat lm-header-prefix))
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164 (progn (goto-char (match-end 0))
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165 (looking-at "\\([^\t ]+\\)")
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166 (match-end 1)))
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167 (buffer-substring (match-beginning 1) (match-end 1))
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168 )))
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169
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170 (defun lm-section-mark (header &optional after)
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171 "Return the buffer location of a given section start marker.
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172 The HEADER is the section mark string to search for.
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173 If AFTER is non-nil, return the location of the next line."
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174 (save-excursion
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175 (let ((case-fold-search t))
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176 (goto-char (point-min))
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177 (if (re-search-forward (lm-get-header-re header 'section) nil t)
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178 (progn
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179 (beginning-of-line)
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180 (if after (forward-line 1))
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181 (point))
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182 nil))))
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183
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184 (defsubst lm-code-mark ()
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185 "Return the buffer location of the `Code' start marker."
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186 (lm-section-mark "Code"))
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187
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188 (defsubst lm-commentary-mark ()
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189 "Return the buffer location of the `Commentary' start marker."
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190 (lm-section-mark lm-commentary-header))
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191
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192 (defsubst lm-history-mark ()
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193 "Return the buffer location of the `History' start marker."
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194 (lm-section-mark lm-history-header))
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195
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196 (defun lm-header (header)
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197 "Return the contents of the header named HEADER."
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198 (goto-char (point-min))
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199 (let ((case-fold-search t))
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200 (if (and (re-search-forward (lm-get-header-re header) (lm-code-mark) t)
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201 ;; RCS ident likes format "$identifier: data$"
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202 (looking-at "\\([^$\n]+\\)")
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203 (match-end 1))
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204 (buffer-substring (match-beginning 1) (match-end 1))
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205 nil)))
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206
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207 (defun lm-header-multiline (header)
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208 "Return the contents of the header named HEADER, with continuation lines.
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209 The returned value is a list of strings, one per line."
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210 (save-excursion
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211 (goto-char (point-min))
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212 (let ((res (lm-header header)))
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213 (cond
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214 (res
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215 (setq res (list res))
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216 (forward-line 1)
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217
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218 (while (and (looking-at (concat lm-header-prefix "[\t ]+"))
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219 (progn
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220 (goto-char (match-end 0))
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221 (looking-at "\\(.*\\)"))
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222 (match-end 1))
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223 (setq res (cons (buffer-substring
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224 (match-beginning 1)
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225 (match-end 1))
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226 res))
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227 (forward-line 1))
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228 ))
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229 res
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230 )))
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231
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232 ;; These give us smart access to the header fields and commentary
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233
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234 (defun lm-summary (&optional file)
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235 "Return the one-line summary of file FILE, or current buffer if FILE is nil."
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236 (save-excursion
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237 (if file
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238 (find-file file))
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239 (goto-char (point-min))
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240 (prog1
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241 (if (and
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242 (looking-at lm-header-prefix)
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243 (progn (goto-char (match-end 0))
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244 (looking-at "[^ ]+[ \t]+--+[ \t]+\\(.*\\)")))
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245 (buffer-substring (match-beginning 1) (match-end 1)))
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246 (if file
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247 (kill-buffer (current-buffer)))
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248 )))
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249
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250 (defun lm-crack-address (x)
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251 "Split up an email address into full name and real email address.
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252 The value is a cons of the form (FULLNAME . ADDRESS)."
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253 (cond ((string-match "\\(.+\\) [(<]\\(\\S-+@\\S-+\\)[>)]" x)
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254 (cons (substring x (match-beginning 1) (match-end 1))
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255 (substring x (match-beginning 2) (match-end 2))))
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256 ((string-match "\\(\\S-+@\\S-+\\) [(<]\\(.*\\)[>)]" x)
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257 (cons (substring x (match-beginning 2) (match-end 2))
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258 (substring x (match-beginning 1) (match-end 1))))
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259 ((string-match "\\S-+@\\S-+" x)
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260 (cons nil x))
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261 (t
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262 (cons x nil))))
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263
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264 (defun lm-authors (&optional file)
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265 "Return the author list of file FILE, or current buffer if FILE is nil.
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266 Each element of the list is a cons; the car is the full name,
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267 the cdr is an email address."
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268 (save-excursion
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269 (if file
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270 (find-file file))
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271 ;; XEmacs change (Is E-MAIL an infodock header? -sb)
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272 (let* ((authorlist (lm-header-multiline "author"))
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273 (email-list (lm-header-multiline "E-MAIL"))
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274 (authors authorlist))
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275 (prog1
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276 (if (null email-list)
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277 (mapcar 'lm-crack-address authorlist)
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278 (while (and email-list authors)
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279 (setcar authors (cons (car authors) (car email-list)))
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280 (setq email-list (cdr email-list)
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281 authors (cdr authors)))
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282 authorlist)
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283 (if file
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284 (kill-buffer (current-buffer))))
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285 )))
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286
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287 (defun lm-maintainer (&optional file)
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288 "Return the maintainer of file FILE, or current buffer if FILE is nil.
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289 The return value has the form (NAME . ADDRESS)."
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290 (save-excursion
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291 (if file
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292 (find-file file))
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293 (prog1
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294 (let ((maint (lm-header "maintainer")))
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295 (if maint
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296 (lm-crack-address maint)
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297 (car (lm-authors))))
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298 (if file
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299 (kill-buffer (current-buffer))))))
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300
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301 (defun lm-creation-date (&optional file)
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302 "Return the created date given in file FILE, or current buffer if FILE is nil."
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303 (save-excursion
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304 (if file
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305 (find-file file))
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306 (prog1
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307 ;; XEmacs change (Is ORIG-DATE an Infodock header? -sb)
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308 (or (lm-header "created")
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309 (let ((date-and-time (lm-header "ORIG-DATE")))
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310 (if date-and-time
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311 (substring date-and-time 0
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312 (string-match " " date-and-time)))))
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313 (if file
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314 (kill-buffer (current-buffer)))
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315 )))
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316
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317 (defun lm-last-modified-date (&optional file)
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318 "Return the modify-date given in file FILE, or current buffer if FILE is nil."
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319 (save-excursion
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320 (if file
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321 (find-file file))
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322 (prog1
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323 (if (progn
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324 (goto-char (point-min))
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325 (re-search-forward
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326 "\\$[I]d: [^ ]+ [^ ]+ \\([^/]+\\)/\\([^/]+\\)/\\([^ ]+\\) "
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327 (lm-code-mark) t))
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328 (format "%s %s %s"
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329 (buffer-substring (match-beginning 3) (match-end 3))
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330 (nth (string-to-int
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331 (buffer-substring (match-beginning 2) (match-end 2)))
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332 '("" "Jan" "Feb" "Mar" "Apr" "May" "Jun"
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333 "Jul" "Aug" "Sep" "Oct" "Nov" "Dec"))
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334 (buffer-substring (match-beginning 1) (match-end 1)))
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335 ;; XEmacs change (Infodock change? -sb)
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336 (let ((date-and-time (lm-header "LAST-MOD")))
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337 (if date-and-time
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338 (substring date-and-time 0
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339 (string-match " " date-and-time)))))
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340 (if file
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341 (kill-buffer (current-buffer)))
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342 )))
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343
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344 (defun lm-version (&optional file)
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345 "Return the version listed in file FILE, or current buffer if FILE is nil.
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448
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346 This can be found in an RCS or SCCS header to crack it out of."
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428
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347 (save-excursion
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348 (if file
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349 (find-file file))
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350 (prog1
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351 (or
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352 (lm-header "version")
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353 (let ((header-max (lm-code-mark)))
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354 (goto-char (point-min))
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355 (cond
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356 ;; Look for an RCS header
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357 ((re-search-forward "\\$[I]d: [^ ]+ \\([^ ]+\\) " header-max t)
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358 (buffer-substring (match-beginning 1) (match-end 1)))
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359
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360 ;; Look for an SCCS header
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361 ((re-search-forward
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362 (concat
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363 (regexp-quote "@(#)")
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364 (regexp-quote (file-name-nondirectory (buffer-file-name)))
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365 "\t\\([012345679.]*\\)")
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366 header-max t)
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367 (buffer-substring (match-beginning 1) (match-end 1)))
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368
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369 (t nil))))
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370 (if file
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371 (kill-buffer (current-buffer)))
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372 )))
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373
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374 (defun lm-keywords (&optional file)
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375 "Return the keywords given in file FILE, or current buffer if FILE is nil."
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376 (save-excursion
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377 (if file
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378 (find-file file))
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379 (prog1
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380 (let ((keywords (lm-header "keywords")))
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381 (and keywords (downcase keywords)))
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382 (if file
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383 (kill-buffer (current-buffer)))
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384 )))
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385
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386 (defun lm-adapted-by (&optional file)
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387 "Return the adapted-by names in file FILE, or current buffer if FILE is nil.
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388 This is the name of the person who cleaned up this package for
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389 distribution."
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390 (save-excursion
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391 (if file
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392 (find-file file))
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393 (prog1
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394 (lm-header "adapted-by")
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395 (if file
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396 (kill-buffer (current-buffer)))
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397 )))
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398
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399 (defun lm-commentary (&optional file)
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400 "Return the commentary in file FILE, or current buffer if FILE is nil.
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401 The value is returned as a string. In the text, the commentary starts
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402 with tag `Commentary' and ends with tag `Change Log' or `History'."
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403 (save-excursion
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404 (if file
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405 (find-file file))
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406 (prog1
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407 (let ((commentary (lm-commentary-mark))
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408 (change-log (lm-history-mark))
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409 (code (lm-code-mark))
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410 end)
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411 (cond
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412 ((and commentary change-log)
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413 (buffer-substring commentary change-log))
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414 ((and commentary code)
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415 (buffer-substring commentary code))
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416 (t
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417 ;; XEmacs change (Infodock headers? -sb)
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418 (setq commentary (lm-section-mark "DESCRIPTION" t))
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419 (setq end (lm-section-mark "DESCRIP-END"))
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420 (and commentary end (buffer-substring commentary end)))))
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421 (if file
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422 (kill-buffer (current-buffer)))
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423 )))
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424
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425 ;;; Verification and synopses
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426
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427 (defun lm-insert-at-column (col &rest strings)
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428 "Insert list of STRINGS, at column COL."
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429 (if (> (current-column) col) (insert "\n"))
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430 (move-to-column-force col)
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431 (apply 'insert strings))
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432
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433 (defun lm-verify (&optional file showok &optional verb)
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434 "Check that the current buffer (or FILE if given) is in proper format.
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435 If FILE is a directory, recurse on its files and generate a report in
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436 a temporary buffer."
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437 (interactive)
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438 (let* ((verb (or verb (interactive-p)))
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439 ret
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440 name
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441 )
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442 (if verb
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443 (setq ret "Ok.")) ;init value
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444
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445 (if (and file (file-directory-p file))
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446 (setq
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447 ret
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448 (progn
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449 (switch-to-buffer (get-buffer-create "*lm-verify*"))
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450 (erase-buffer)
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451 (mapcar
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452 #'(lambda (f)
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453 (if (string-match ".*\\.el$" f)
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454 (let ((status (lm-verify f)))
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455 (if status
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456 (progn
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457 (insert f ":")
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458 (lm-insert-at-column lm-comment-column status "\n"))
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459 (and showok
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460 (progn
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461 (insert f ":")
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462 (lm-insert-at-column lm-comment-column "OK\n")))))))
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463 (directory-files file))
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464 ))
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465 (save-excursion
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466 (if file
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467 (find-file file))
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468 (setq name (lm-get-package-name))
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469
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470 (setq
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471 ret
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472 (prog1
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473 (cond
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474 ((null name)
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475 "Can't find a package NAME")
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476
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477 ((not (lm-authors))
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478 "Author: tag missing.")
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479
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480 ((not (lm-maintainer))
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481 "Maintainer: tag missing.")
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482
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483 ((not (lm-summary))
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484 "Can't find a one-line 'Summary' description")
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485
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486 ((not (lm-keywords))
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487 "Keywords: tag missing.")
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488
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489 ((not (lm-commentary-mark))
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490 "Can't find a 'Commentary' section marker.")
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491
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492 ((not (lm-history-mark))
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493 "Can't find a 'History' section marker.")
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494
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495 ((not (lm-code-mark))
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496 "Can't find a 'Code' section marker")
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497
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498 ((progn
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499 (goto-char (point-max))
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500 (not
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501 (re-search-backward
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502 (concat "^;;;[ \t]+" name "[ \t]+ends here[ \t]*$"
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503 "\\|^;;;[ \t]+ End of file[ \t]+" name)
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504 nil t
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505 )))
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506 (format "Can't find a footer line for [%s]" name))
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507 (t
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508 ret))
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509 (if file
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510 (kill-buffer (current-buffer)))
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511 ))))
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512 (if verb
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513 (message ret))
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514 ret
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515 ))
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516
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517 (defun lm-synopsis (&optional file showall)
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518 "Generate a synopsis listing for the buffer or the given FILE if given.
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519 If FILE is a directory, recurse on its files and generate a report in
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520 a temporary buffer. If SHOWALL is non-nil, also generate a line for files
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521 which do not include a recognizable synopsis."
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522 (interactive
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523 (list
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524 (read-file-name "Synopsis for (file or dir): ")))
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525
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526 (if (and file (file-directory-p file))
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527 (progn
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528 (switch-to-buffer (get-buffer-create "*lm-verify*"))
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529 (erase-buffer)
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530 (mapcar
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531 (lambda (f) ; XEmacs - dequote
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532 (if (string-match ".*\\.el$" f)
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533 (let ((syn (lm-synopsis f)))
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534 (if syn
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535 (progn
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536 (insert f ":")
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537 (lm-insert-at-column lm-comment-column syn "\n"))
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538 (and showall
|
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539 (progn
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540 (insert f ":")
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541 (lm-insert-at-column lm-comment-column "NA\n")))))))
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542 (directory-files file))
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543 )
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544 (save-excursion
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|
545 (if file
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546 (find-file file))
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547 (prog1
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548 (lm-summary)
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549 (if file
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550 (kill-buffer (current-buffer)))
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551 ))))
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552
|
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553 (defun lm-report-bug (topic)
|
|
|
554 "Report a bug in the package currently being visited to its maintainer.
|
|
|
555 Prompts for bug subject. Leaves you in a mail buffer."
|
|
|
556 (interactive "sBug Subject: ")
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|
557 (let ((package (lm-get-package-name))
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558 (addr (lm-maintainer))
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559 (version (lm-version)))
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776
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560 (if-fboundp 'mail
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|
561 (mail nil
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|
562 (if addr
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|
563 (concat (car addr) " <" (cdr addr) ">")
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|
|
564 (or (and-boundp 'report-xemacs-bug-beta-address
|
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565 report-xemacs-bug-beta-address)
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|
|
566 "<xemacs-beta@xemacs.org>"))
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567 topic)
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568 (error 'unimplemented "No mail package available"))
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|
428
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569 (goto-char (point-max))
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|
570 (insert "\nIn "
|
|
|
571 package
|
|
|
572 (if version (concat " version " version) "")
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|
573 "\n\n")
|
|
|
574 (message
|
|
|
575 (substitute-command-keys "Type \\[mail-send] to send bug report."))))
|
|
|
576
|
|
|
577 (provide 'lisp-mnt)
|
|
|
578
|
|
|
579 ;;; lisp-mnt.el ends here
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