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1 ;;; add-log.el --- change log maintenance commands for Emacs
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2
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70
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3 ;; Copyright (C) 1985, 1986, 1988, 1993, 1994 Free Software Foundation, Inc.
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4
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5 ;; Keywords: maint
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6
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7 ;; This file is part of XEmacs.
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8
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9 ;; XEmacs is free software; you can redistribute it and/or modify it
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10 ;; under the terms of the GNU General Public License as published by
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11 ;; the Free Software Foundation; either version 2, or (at your option)
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12 ;; any later version.
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13
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14 ;; XEmacs is distributed in the hope that it will be useful, but
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15 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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17 ;; General Public License for more details.
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18
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19 ;; You should have received a copy of the GNU General Public License
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16
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20 ;; along with XEmacs; see the file COPYING. If not, write to the
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21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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22 ;; Boston, MA 02111-1307, USA.
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23
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24 ;;; Synched up with: FSF 19.34.
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25
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26 ;;; Commentary:
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27
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28 ;; This facility is documented in the Emacs Manual.
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29
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30 ;;; Code:
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31
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120
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32 (defgroup change-log nil
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33 "Change log maintenance"
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34 :group 'tools
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35 :prefix "change-log-"
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36 :prefix "add-log-")
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37
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38
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39 ;;;###autoload
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120
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40 (defcustom change-log-default-name nil
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41 "*Name of a change log file for \\[add-change-log-entry]."
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42 :type '(choice (const :tag "default" nil)
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43 string)
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44 :group 'change-log)
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45
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46 ;;;###autoload
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47 (defcustom add-log-current-defun-function nil
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48 "\
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49 *If non-nil, function to guess name of current function from surrounding text.
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50 \\[add-change-log-entry] calls this function (if nil, `add-log-current-defun'
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120
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51 instead) with no arguments. It returns a string or nil if it cannot guess."
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52 :type 'boolean
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53 :group 'change-log)
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54
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55 ;;;###autoload
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120
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56 (defcustom add-log-full-name nil
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57 "*Full name of user, for inclusion in ChangeLog daily headers.
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58 This defaults to the value returned by the `user-full-name' function."
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59 :type '(choice (const :tag "Default" nil)
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60 string)
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61 :group 'change-log)
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62
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63 ;; So that the dump-time value doesn't go into loaddefs.el with the autoload.
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64 (or add-log-full-name (setq add-log-full-name (user-full-name)))
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65
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66 ;;;###autoload
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120
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67 (defcustom add-log-mailing-address nil
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68 "*Electronic mail address of user, for inclusion in ChangeLog daily headers.
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69 This defaults to the value of `user-mail-address'."
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70 :type '(choice (const :tag "Default" nil)
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71 string)
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72 :group 'change-log)
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73
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74 ;; So that the dump-time value doesn't go into loaddefs.el with the autoload.
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75 (or add-log-mailing-address
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76 (setq add-log-mailing-address (user-mail-address)))
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77
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78 (defvar change-log-font-lock-keywords
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79 '(("^[SMTWF].+" . font-lock-function-name-face) ; Date line.
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80 ("^\t\\* \\([^ :\n]+\\)" 1 font-lock-comment-face) ; File name.
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81 ("(\\([^)\n]+\\)):" 1 font-lock-keyword-face)) ; Function name.
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82 "Additional expressions to highlight in Change Log mode.")
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83 (put 'change-log-mode 'font-lock-defaults
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84 '(change-log-font-lock-keywords t))
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85
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86 (defvar change-log-mode-map nil
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87 "Keymap for Change Log major mode.")
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88 (if change-log-mode-map
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89 nil
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90 (setq change-log-mode-map (make-sparse-keymap))
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91 (define-key change-log-mode-map "\M-q" 'change-log-fill-paragraph))
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92
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93 (defun change-log-name ()
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94 (or change-log-default-name
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95 (if (eq system-type 'vax-vms)
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96 "$CHANGE_LOG$.TXT"
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97 (if (or (eq system-type 'ms-dos) (eq system-type 'windows-nt))
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98 "changelo"
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99 "ChangeLog"))))
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100
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101 ;;;###autoload
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102 (defun prompt-for-change-log-name ()
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103 "Prompt for a change log name."
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104 (let* ((default (change-log-name))
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105 (name (expand-file-name
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106 (read-file-name (format "Log file (default %s): " default)
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107 nil default))))
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108 ;; Handle something that is syntactically a directory name.
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109 ;; Look for ChangeLog or whatever in that directory.
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110 (if (string= (file-name-nondirectory name) "")
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111 (expand-file-name (file-name-nondirectory default)
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112 name)
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113 ;; Handle specifying a file that is a directory.
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114 (if (file-directory-p name)
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115 (expand-file-name (file-name-nondirectory default)
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116 (file-name-as-directory name))
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117 name))))
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118
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119 ;;;###autoload
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120 (defun find-change-log (&optional file-name)
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121 "Find a change log file for \\[add-change-log-entry] and return the name.
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122
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123 Optional arg FILE-NAME specifies the file to use.
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124 If FILE-NAME is nil, use the value of `change-log-default-name'.
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125 If 'change-log-default-name' is nil, behave as though it were 'ChangeLog'
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126 \(or whatever we use on this operating system).
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127
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128 If 'change-log-default-name' contains a leading directory component, then
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129 simply find it in the current directory. Otherwise, search in the current
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130 directory and its successive parents for a file so named.
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131
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132 Once a file is found, `change-log-default-name' is set locally in the
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133 current buffer to the complete file name."
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134 ;; If user specified a file name or if this buffer knows which one to use,
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135 ;; just use that.
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136 (or file-name
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137 (setq file-name (and change-log-default-name
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138 (file-name-directory change-log-default-name)
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139 change-log-default-name))
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140 (progn
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141 ;; Chase links in the source file
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142 ;; and use the change log in the dir where it points.
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143 (setq file-name (or (and buffer-file-name
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144 (file-name-directory
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145 (file-chase-links buffer-file-name)))
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146 default-directory))
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147 (if (file-directory-p file-name)
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148 (setq file-name (expand-file-name (change-log-name) file-name)))
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149 ;; Chase links before visiting the file.
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150 ;; This makes it easier to use a single change log file
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151 ;; for several related directories.
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152 (setq file-name (file-chase-links file-name))
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153 (setq file-name (expand-file-name file-name))
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154 ;; Move up in the dir hierarchy till we find a change log file.
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155 (let ((file1 file-name)
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156 parent-dir)
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157 (while (and (not (or (get-file-buffer file1) (file-exists-p file1)))
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158 (progn (setq parent-dir
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159 (file-name-directory
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160 (directory-file-name
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161 (file-name-directory file1))))
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162 ;; Give up if we are already at the root dir.
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163 (not (string= (file-name-directory file1)
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164 parent-dir))))
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165 ;; Move up to the parent dir and try again.
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166 (setq file1 (expand-file-name
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167 (file-name-nondirectory (change-log-name))
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168 parent-dir)))
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169 ;; If we found a change log in a parent, use that.
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170 (if (or (get-file-buffer file1) (file-exists-p file1))
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171 (setq file-name file1)))))
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172 ;; Make a local variable in this buffer so we needn't search again.
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173 (set (make-local-variable 'change-log-default-name) file-name)
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174 file-name)
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175
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176 ;;;###autoload
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177 (defun add-change-log-entry (&optional whoami file-name other-window new-entry)
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178 "Find change log file and add an entry for today.
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179 Optional arg (interactive prefix) non-nil means prompt for user name and site.
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180 Second arg is file name of change log. If nil, uses `change-log-default-name'.
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181 Third arg OTHER-WINDOW non-nil means visit in other window.
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182 Fourth arg NEW-ENTRY non-nil means always create a new entry at the front;
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183 never append to an existing entry."
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184 (interactive (list current-prefix-arg
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185 (prompt-for-change-log-name)))
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186 (or add-log-full-name
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187 (setq add-log-full-name (user-full-name)))
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188 (or add-log-mailing-address
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189 (setq add-log-mailing-address (user-mail-address)))
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190 (if whoami
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191 (progn
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192 (setq add-log-full-name (read-string "Full name: " add-log-full-name))
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193 ;; Note that some sites have room and phone number fields in
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194 ;; full name which look silly when inserted. Rather than do
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195 ;; anything about that here, let user give prefix argument so that
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196 ;; s/he can edit the full name field in prompter if s/he wants.
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197 (setq add-log-mailing-address
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198 (read-string "Mailing address: " add-log-mailing-address))))
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199 (let ((defun (funcall (or add-log-current-defun-function
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200 'add-log-current-defun)))
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201 paragraph-end entry)
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202
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203 (setq file-name (expand-file-name (find-change-log file-name)))
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204
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205 ;; Set ENTRY to the file name to use in the new entry.
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206 (and buffer-file-name
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207 ;; Never want to add a change log entry for the ChangeLog file itself.
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208 (not (string= buffer-file-name file-name))
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209 (setq entry (if (string-match
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210 (concat "^" (regexp-quote (file-name-directory
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211 file-name)))
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212 buffer-file-name)
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213 (substring buffer-file-name (match-end 0))
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214 (file-name-nondirectory buffer-file-name))))
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215
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216 (if (and other-window (not (equal file-name buffer-file-name)))
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217 (find-file-other-window file-name)
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218 (find-file file-name))
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219 (or (eq major-mode 'change-log-mode)
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220 (change-log-mode))
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221 (undo-boundary)
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222 (goto-char (point-min))
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223 (if (looking-at (concat (regexp-quote (substring (current-time-string)
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224 0 10))
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225 ".* " (regexp-quote add-log-full-name)
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226 " <" (regexp-quote add-log-mailing-address)))
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227 (forward-line 1)
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228 (insert (current-time-string)
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229 " " add-log-full-name
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230 " <" add-log-mailing-address ">\n\n"))
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231
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232 ;; Search only within the first paragraph.
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233 (if (looking-at "\n*[^\n* \t]")
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234 (skip-chars-forward "\n")
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235 (forward-paragraph 1))
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236 (setq paragraph-end (point))
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237 (goto-char (point-min))
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238
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239 ;; Now insert the new line for this entry.
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240 (cond ((re-search-forward "^\\s *\\*\\s *$" paragraph-end t)
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241 ;; Put this file name into the existing empty entry.
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242 (if entry
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243 (insert entry)))
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244 ((and (not new-entry)
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245 (let (case-fold-search)
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246 (re-search-forward
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247 (concat (regexp-quote (concat "* " entry))
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248 ;; Don't accept `foo.bar' when
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249 ;; looking for `foo':
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250 "\\(\\s \\|[(),:]\\)")
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251 paragraph-end t)))
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252 ;; Add to the existing entry for the same file.
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253 (re-search-forward "^\\s *$\\|^\\s \\*")
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254 (goto-char (match-beginning 0))
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255 ;; Delete excess empty lines; make just 2.
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256 (while (and (not (eobp)) (looking-at "^\\s *$"))
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257 (delete-region (point) (save-excursion (forward-line 1) (point))))
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258 (insert "\n\n")
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259 (forward-line -2)
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260 (indent-relative-maybe))
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261 (t
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262 ;; Make a new entry.
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263 (forward-line 1)
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264 (while (looking-at "\\sW")
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265 (forward-line 1))
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266 (while (and (not (eobp)) (looking-at "^\\s *$"))
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267 (delete-region (point) (save-excursion (forward-line 1) (point))))
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268 (insert "\n\n\n")
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269 (forward-line -2)
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270 (indent-to left-margin)
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271 (insert "* " (or entry ""))))
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272 ;; Now insert the function name, if we have one.
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273 ;; Point is at the entry for this file,
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274 ;; either at the end of the line or at the first blank line.
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275 (if defun
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276 (progn
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277 ;; Make it easy to get rid of the function name.
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278 (undo-boundary)
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279 (insert (if (save-excursion
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280 (beginning-of-line 1)
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281 (looking-at "\\s *$"))
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282 ""
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283 " ")
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284 "(" defun "): "))
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285 ;; No function name, so put in a colon unless we have just a star.
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286 (if (not (save-excursion
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287 (beginning-of-line 1)
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288 (looking-at "\\s *\\(\\*\\s *\\)?$")))
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289 (insert ": ")))))
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290
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291 ;;;###autoload
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292 (defun add-change-log-entry-other-window (&optional whoami file-name)
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293 "Find change log file in other window and add an entry for today.
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294 Optional arg (interactive prefix) non-nil means prompt for user name and site.
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295 Second arg is file name of change log. \
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296 If nil, uses `change-log-default-name'."
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297 (interactive (if current-prefix-arg
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298 (list current-prefix-arg
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299 (prompt-for-change-log-name))))
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300 (add-change-log-entry whoami file-name t))
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301 ;;;###autoload (define-key ctl-x-4-map "a" 'add-change-log-entry-other-window)
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302
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303 (defvar change-log-mode-map nil
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304 "Keymap for Change Log major mode.")
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305 (if change-log-mode-map
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306 nil
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307 (setq change-log-mode-map (make-sparse-keymap))
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308 (set-keymap-name change-log-mode-map 'change-log-mode-map)
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309 (define-key change-log-mode-map "\M-q" 'change-log-fill-paragraph))
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310
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311 ;;;###autoload
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312 (defun change-log-mode ()
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313 "Major mode for editing change logs; like Indented Text Mode.
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314 Prevents numeric backups and sets `left-margin' to 8 and `fill-column' to 74.
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315 New log entries are usually made with \\[add-change-log-entry] or \\[add-change-log-entry-other-window].
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316 Each entry behaves as a paragraph, and the entries for one day as a page.
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317 Runs `change-log-mode-hook'."
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318 (interactive)
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319 (kill-all-local-variables)
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320 (indented-text-mode)
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321 (setq major-mode 'change-log-mode
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322 mode-name "Change Log"
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323 left-margin 8
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2
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324 fill-column 74
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325 indent-tabs-mode t
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326 tab-width 8)
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327 (use-local-map change-log-mode-map)
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328 ;; Let each entry behave as one paragraph:
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329 ;; We really do want "^" in paragraph-start below: it is only the lines that
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330 ;; begin at column 0 (despite the left-margin of 8) that we are looking for.
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331 (set (make-local-variable 'paragraph-start) "\\s *$\\|\f\\|^\\sw")
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332 (set (make-local-variable 'paragraph-separate) "\\s *$\\|\f\\|^\\sw")
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333 ;; Let all entries for one day behave as one page.
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334 ;; Match null string on the date-line so that the date-line
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335 ;; is grouped with what follows.
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336 (set (make-local-variable 'page-delimiter) "^\\<\\|^\f")
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337 (set (make-local-variable 'version-control) 'never)
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338 (set (make-local-variable 'adaptive-fill-regexp) "\\s *")
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339 (run-hooks 'change-log-mode-hook))
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340
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341 ;; It might be nice to have a general feature to replace this. The idea I
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342 ;; have is a variable giving a regexp matching text which should not be
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343 ;; moved from bol by filling. change-log-mode would set this to "^\\s *\\s(".
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344 ;; But I don't feel up to implementing that today.
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345 (defun change-log-fill-paragraph (&optional justify)
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346 "Fill the paragraph, but preserve open parentheses at beginning of lines.
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347 Prefix arg means justify as well."
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348 (interactive "P")
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349 (let ((end (save-excursion (forward-paragraph) (point)))
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350 (beg (save-excursion (backward-paragraph)(point)))
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351 (paragraph-start (concat paragraph-start "\\|\\s *\\s(")))
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352 (fill-region beg end justify)))
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353
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120
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354 (defcustom add-log-current-defun-header-regexp
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0
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355 "^\\([A-Z][A-Z_ ]*[A-Z_]\\|[-_a-zA-Z]+\\)[ \t]*[:=]"
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120
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356 "*Heuristic regexp used by `add-log-current-defun' for unknown major modes."
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357 :type 'regexp
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358 :group 'change-log)
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359
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360 ;;;###autoload
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361 (defun add-log-current-defun ()
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362 "Return name of function definition point is in, or nil.
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363
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364 Understands C, Lisp, LaTeX (\"functions\" are chapters, sections, ...),
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365 Texinfo (@node titles), Perl, and Fortran.
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366
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367 Other modes are handled by a heuristic that looks in the 10K before
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368 point for uppercase headings starting in the first column or
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369 identifiers followed by `:' or `=', see variable
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370 `add-log-current-defun-header-regexp'.
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371
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372 Has a preference of looking backwards."
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373 (condition-case nil
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374 (save-excursion
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375 (let ((location (point)))
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70
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376 (cond ((memq major-mode '(emacs-lisp-mode lisp-mode scheme-mode
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377 lisp-interaction-mode))
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0
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378 ;; If we are now precisely at the beginning of a defun,
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379 ;; make sure beginning-of-defun finds that one
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380 ;; rather than the previous one.
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381 (or (eobp) (forward-char 1))
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382 (beginning-of-defun)
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383 ;; Make sure we are really inside the defun found, not after it.
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2
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384 (if (and (looking-at "\\s(")
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385 (progn (end-of-defun)
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0
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386 (< location (point)))
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387 (progn (forward-sexp -1)
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388 (>= location (point))))
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389 (progn
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390 (if (looking-at "\\s(")
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391 (forward-char 1))
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392 (forward-sexp 1)
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393 (skip-chars-forward " '")
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394 (buffer-substring (point)
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395 (progn (forward-sexp 1) (point))))))
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70
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396 ((and (memq major-mode '(c-mode c++-mode c++-c-mode objc-mode))
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397 (save-excursion (beginning-of-line)
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398 ;; Use eq instead of = here to avoid
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399 ;; error when at bob and char-after
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400 ;; returns nil.
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401 (while (eq (char-after (- (point) 2)) ?\\)
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402 (forward-line -1))
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403 (looking-at "[ \t]*#[ \t]*define[ \t]")))
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0
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404 ;; Handle a C macro definition.
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405 (beginning-of-line)
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406 (while (eq (char-after (- (point) 2)) ?\\) ;not =; note above
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407 (forward-line -1))
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408 (search-forward "define")
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409 (skip-chars-forward " \t")
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410 (buffer-substring (point)
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411 (progn (forward-sexp 1) (point))))
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70
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412 ((memq major-mode '(c-mode c++-mode c++-c-mode objc-mode))
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0
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413 (beginning-of-line)
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414 ;; See if we are in the beginning part of a function,
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415 ;; before the open brace. If so, advance forward.
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416 (while (not (looking-at "{\\|\\(\\s *$\\)"))
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417 (forward-line 1))
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418 (or (eobp)
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419 (forward-char 1))
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420 (beginning-of-defun)
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421 (if (progn (end-of-defun)
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422 (< location (point)))
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423 (progn
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424 (backward-sexp 1)
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425 (let (beg tem)
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426
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427 (forward-line -1)
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428 ;; Skip back over typedefs of arglist.
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429 (while (and (not (bobp))
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430 (looking-at "[ \t\n]"))
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431 (forward-line -1))
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432 ;; See if this is using the DEFUN macro used in Emacs,
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433 ;; or the DEFUN macro used by the C library.
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434 (if (condition-case nil
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435 (and (save-excursion
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436 (end-of-line)
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437 (while (= (preceding-char) ?\\)
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438 (end-of-line 2))
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439 (backward-sexp 1)
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440 (beginning-of-line)
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441 (setq tem (point))
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442 (looking-at "DEFUN\\b"))
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443 (>= location tem))
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444 (error nil))
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445 (progn
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446 (goto-char tem)
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447 (down-list 1)
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448 (if (= (char-after (point)) ?\")
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449 (progn
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450 (forward-sexp 1)
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451 (skip-chars-forward " ,")))
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452 (buffer-substring (point)
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453 (progn (forward-sexp 1) (point))))
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454 (if (looking-at "^[+-]")
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455 (get-method-definition)
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456 ;; Ordinary C function syntax.
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457 (setq beg (point))
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458 (if (and (condition-case nil
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459 ;; Protect against "Unbalanced parens" error.
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460 (progn
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461 (down-list 1) ; into arglist
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462 (backward-up-list 1)
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463 (skip-chars-backward " \t")
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464 t)
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465 (error nil))
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466 ;; Verify initial pos was after
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467 ;; real start of function.
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468 (save-excursion
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469 (goto-char beg)
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470 ;; For this purpose, include the line
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471 ;; that has the decl keywords. This
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472 ;; may also include some of the
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473 ;; comments before the function.
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474 (while (and (not (bobp))
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475 (save-excursion
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476 (forward-line -1)
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477 (looking-at "[^\n\f]")))
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478 (forward-line -1))
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479 (>= location (point)))
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480 ;; Consistency check: going down and up
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481 ;; shouldn't take us back before BEG.
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482 (> (point) beg))
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483 (let (end middle)
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484 ;; Don't include any final newline
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485 ;; in the name we use.
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486 (if (= (preceding-char) ?\n)
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487 (forward-char -1))
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488 (setq end (point))
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489 (backward-sexp 1)
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490 ;; Now find the right beginning of the name.
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491 ;; Include certain keywords if they
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492 ;; precede the name.
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493 (setq middle (point))
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494 (forward-word -1)
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495 ;; Ignore these subparts of a class decl
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496 ;; and move back to the class name itself.
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497 (while (looking-at "public \\|private ")
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498 (skip-chars-backward " \t:")
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499 (setq end (point))
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500 (backward-sexp 1)
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501 (setq middle (point))
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502 (forward-word -1))
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503 (and (bolp)
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504 (looking-at "struct \\|union \\|class ")
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505 (setq middle (point)))
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506 (buffer-substring middle end)))))))))
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70
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507 ((memq major-mode
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508 '(TeX-mode plain-TeX-mode LaTeX-mode;; tex-mode.el
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509 plain-tex-mode latex-mode;; cmutex.el
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510 ))
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0
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511 (if (re-search-backward
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512 "\\\\\\(sub\\)*\\(section\\|paragraph\\|chapter\\)" nil t)
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513 (progn
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514 (goto-char (match-beginning 0))
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515 (buffer-substring (1+ (point));; without initial backslash
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516 (progn
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517 (end-of-line)
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518 (point))))))
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519 ((eq major-mode 'texinfo-mode)
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520 (if (re-search-backward "^@node[ \t]+\\([^,\n]+\\)" nil t)
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521 (buffer-substring (match-beginning 1)
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522 (match-end 1))))
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523 ((eq major-mode 'perl-mode)
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524 (if (re-search-backward "^sub[ \t]+\\([^ \t\n]+\\)" nil t)
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525 (buffer-substring (match-beginning 1)
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526 (match-end 1))))
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527 ((eq major-mode 'fortran-mode)
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528 ;; must be inside function body for this to work
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529 (beginning-of-fortran-subprogram)
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530 (let ((case-fold-search t)) ; case-insensitive
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531 ;; search for fortran subprogram start
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532 (if (re-search-forward
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533 "^[ \t]*\\(program\\|subroutine\\|function\
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534 \\|[ \ta-z0-9*]*[ \t]+function\\)"
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535 nil t)
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536 (progn
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537 ;; move to EOL or before first left paren
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538 (if (re-search-forward "[(\n]" nil t)
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539 (progn (forward-char -1)
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540 (skip-chars-backward " \t"))
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541 (end-of-line))
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542 ;; Use the name preceding that.
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543 (buffer-substring (point)
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544 (progn (forward-sexp -1)
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545 (point)))))))
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546 (t
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547 ;; If all else fails, try heuristics
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548 (let (case-fold-search)
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549 (end-of-line)
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550 (if (re-search-backward add-log-current-defun-header-regexp
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551 (- (point) 10000)
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552 t)
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553 (buffer-substring (match-beginning 1)
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554 (match-end 1))))))))
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555 (error nil)))
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556
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557 (defvar get-method-definition-md)
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558
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559 ;; Subroutine used within get-method-definition.
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560 ;; Add the last match in the buffer to the end of `md',
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561 ;; followed by the string END; move to the end of that match.
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562 (defun get-method-definition-1 (end)
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563 (setq get-method-definition-md
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564 (concat get-method-definition-md
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565 (buffer-substring (match-beginning 1) (match-end 1))
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566 end))
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567 (goto-char (match-end 0)))
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568
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569 ;; For objective C, return the method name if we are in a method.
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570 (defun get-method-definition ()
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571 (let ((get-method-definition-md "["))
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572 (save-excursion
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573 (if (re-search-backward "^@implementation\\s-*\\([A-Za-z_]*\\)" nil t)
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574 (get-method-definition-1 " ")))
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575 (save-excursion
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576 (cond
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577 ((re-search-forward "^\\([-+]\\)[ \t\n\f\r]*\\(([^)]*)\\)?\\s-*" nil t)
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578 (get-method-definition-1 "")
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579 (while (not (looking-at "[{;]"))
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580 (looking-at
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581 "\\([A-Za-z_]*:?\\)\\s-*\\(([^)]*)\\)?[A-Za-z_]*[ \t\n\f\r]*")
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582 (get-method-definition-1 ""))
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583 (concat get-method-definition-md "]"))))))
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584
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585
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586 (provide 'add-log)
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587
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588 ;;; add-log.el ends here
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