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annotate .elisp/diff-mode-.el @ 123:b2a07050b430

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author Augie Fackler <durin42@gmail.com>
date Tue, 07 Jul 2009 13:55:05 -0500
parents dc1c584707e6
children
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1 ;;; diff-mode-.el --- Extensions to `diff-mode.el'.
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2 ;;
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3 ;; Filename: diff-mode-.el
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4 ;; Description: Extensions to `diff-mode.el'.
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5 ;; Author: Drew Adams
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6 ;; Maintainer: Drew Adams
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7 ;; Copyright (C) 2004-2009, Drew Adams, all rights reserved.
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8 ;; Created: Mon Nov 08 16:36:09 2004
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9 ;; Version: 21.0
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10 ;; Last-Updated: Sat Dec 27 10:19:33 2008 (-0800)
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11 ;; By: dradams
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12 ;; Update #: 646
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13 ;; URL: http://www.emacswiki.org/cgi-bin/wiki/diff-mode-.el
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14 ;; Keywords: data, matching, tools, unix, local, font, face
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15 ;; Compatibility: GNU Emacs 21.x, GNU Emacs 22.x
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16 ;;
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17 ;; Features that might be required by this library:
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18 ;;
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19 ;; None
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20 ;;
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21 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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22 ;;
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23 ;;; Commentary:
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24 ;;
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25 ;; Extensions to `diff-mode.el'.
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26 ;;
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27 ;; "*Diff*" buffer is highlighted differently.
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28 ;;
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29 ;; NOTE: The faces defined here look best on a medium-dark
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30 ;; background, because some are light and some are dark.
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31 ;; Try, for example, setting the background to "LightSteelBlue"
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32 ;; in your `~/.emacs' file: You can do this is via
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33 ;; `special-display-buffer-names':
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34 ;;
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35 ;; (setq special-display-buffer-names
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36 ;; (cons '("*Diff*" (background-color . "LightSteelBlue"))
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37 ;; special-display-buffer-names))
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38 ;;
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39 ;; You can alternatively change the background value of
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40 ;; `special-display-frame-alist' and set
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41 ;; `special-display-regexps' to something matching "*info*":
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42 ;;
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43 ;; (setq special-display-frame-alist
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44 ;; (cons '(background-color . "LightSteelBlue")
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45 ;; special-display-frame-alist))
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46 ;; (setq special-display-regexps '("[ ]?[*][^*]+[*]"))
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47 ;;
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48 ;;
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49 ;; New faces defined here:
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50 ;;
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51 ;; `diff-file1-hunk-header', `diff-file2-hunk-header'.
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52 ;;
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53 ;; New user options defined here:
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54 ;;
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55 ;; `diff-file1-hunk-header-face', `diff-file2-hunk-header-face'.
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56 ;;
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57 ;;
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58 ;; ***** NOTE: The following faces defined in `diff-mode.el' have
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59 ;; been REDEFINED HERE:
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60 ;;
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61 ;; `diff-added', `diff-changed', `diff-context',
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62 ;; `diff-file-header', `diff-header', `diff-hunk-header',
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63 ;; `diff-index', `diff-indicator-added', `diff-indicator-changed',
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64 ;; `diff-indicator-removed', `diff-nonexistent', `diff-removed'.
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65 ;;
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66 ;;
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67 ;; ***** NOTE: The following variable defined in `diff-mode.el' has
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68 ;; been REDEFINED HERE:
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69 ;;
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70 ;; `diff-font-lock-keywords'.
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71 ;;
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72 ;;
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73 ;; This library should be loaded *before* library `diff-mode.el'.
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74 ;; Put this in your initialization file, `~/.emacs':
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75 ;; (require 'diff-mode-)
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76 ;;
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77 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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78 ;;
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79 ;;; Change log:
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80 ;;
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81 ;; 2008/01/01 dadams
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82 ;; Added :group for deffaces.
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83 ;; 2006/01/04 dadams
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84 ;; Updated to use new Emacs 22 face names for indicator faces.
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85 ;; Thanks to Juri Linkov for the letting me know about the new faces.
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86 ;; Updated diff-font-lock-keywords to be = Emacs 22, except for file name.
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87 ;; 2006/01/01 dadams
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88 ;; Renamed faces, without "-face".
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89 ;;
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90 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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91 ;;
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92 ;; This program is free software; you can redistribute it and/or modify
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93 ;; it under the terms of the GNU General Public License as published by
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94 ;; the Free Software Foundation; either version 2, or (at your option)
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95 ;; any later version.
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96
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97 ;; This program is distributed in the hope that it will be useful,
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98 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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99 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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100 ;; GNU General Public License for more details.
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101
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102 ;; You should have received a copy of the GNU General Public License
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103 ;; along with this program; see the file COPYING. If not, write to
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104 ;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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105 ;; Floor, Boston, MA 02110-1301, USA.
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106 ;;
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107 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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108 ;;
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109 ;;; Code:
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110
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111 ;;;;;;;;;;;;;;;;;;;;;;;;
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112
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113
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114 ;;; Define some additional faces.
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115 (defface diff-file1-hunk-header
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116 '((t (:foreground "Blue" :background "DarkSeaGreen1")))
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117 "Face used to highlight a diff hunk for the first `diff' argument."
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118 :group 'diff-mode)
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119 (defvar diff-file1-hunk-header-face 'diff-file1-hunk-header)
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120
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121 (defface diff-file2-hunk-header
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122 '((t (:foreground "Red" :background "PaleGoldenrod")))
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123 "Face used to highlight a diff hunk for the second `diff' argument."
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124 :group 'diff-mode)
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125 (defvar diff-file2-hunk-header-face 'diff-file2-hunk-header)
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126
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127 ;;; These faces are standard in Emacs 22, but they are new for Emacs 21.
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128 (defface diff-indicator-changed
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129 '((t (:foreground "PaleGoldenrod" :background "MediumBlue")))
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130 "*Face used to highlight the line-start indicator of a modified line."
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131 :group 'diff-mode)
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132 (defvar diff-indicator-changed-face 'diff-indicator-changed)
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133
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134 (defface diff-indicator-added
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135 '((t (:foreground "PaleGoldenrod" :background "DarkGreen")))
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136 "*Face used to highlight the line-start indicator of an inserted line."
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137 :group 'diff-mode)
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138 (defvar diff-indicator-added-face 'diff-indicator-added)
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139
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140 (defface diff-indicator-removed
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141 '((t (:foreground "PaleGoldenrod" :background "DarkMagenta")))
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142 "*Face used to highlight the line-start indicator of a removed line."
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143 :group 'diff-mode)
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144 (defvar diff-indicator-removed-face 'diff-indicator-removed)
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145
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146 ;;; Change existing `diff-mode' faces too.
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147 (custom-set-faces
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148 '(diff-added ((t (:foreground "DarkGreen"))) 'now)
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149 '(diff-changed ((t (:foreground "MediumBlue"))) 'now)
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150 '(diff-context ((t (:foreground "LightSteelBlue"))) 'now)
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151 '(diff-file-header ((t (:foreground "White"))) 'now)
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152 '(diff-header ((t (:foreground "White"))) 'now)
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153 '(diff-hunk-header ((t (:foreground "White"))) 'now)
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154 '(diff-index ((t (:foreground "Green"))) 'now)
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155 '(diff-nonexistent ((t (:foreground "DarkBlue"))) 'now)
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156 '(diff-removed ((t (:foreground "Red"))) 'now)
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157 )
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158
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159 ;;; The only real difference here now from the standard Emacs 22 version is the
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160 ;;; use of diff-file1* and diff-file2*.
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161 (defvar diff-font-lock-keywords
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162 `(
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163 ("^\\(@@ -[0-9,]+ \\+[0-9,]+ @@\\)\\(.*\\)$" ;unified
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164 (1 diff-hunk-header-face) (2 diff-function-face))
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165 ("^\\(\\*\\{15\\}\\)\\(.*\\)$" ;context
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166 (1 diff-hunk-header-face) (2 diff-function-face))
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167 ("^\\*\\*\\* .+ \\*\\*\\*\\*". diff-file1-hunk-header-face) ;context
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168 ("^--- .+ ----$" . diff-file2-hunk-header-face) ;context
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169 ("^[0-9,]+[acd][0-9,]+$" . diff-hunk-header-face) ; normal
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170 ("^---$" . diff-hunk-header-face) ;normal
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171 ("^\\(---\\|\\+\\+\\+\\|\\*\\*\\*\\) \\(\\S-+\\)\\(.*[^*-]\\)?\n"
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172 (0 diff-header-face) (2 diff-file-header-face prepend))
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173 ("^\\([-<]\\)\\(.*\n\\)" (1 diff-indicator-removed-face) (2 diff-removed-face))
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174 ("^\\([+>]\\)\\(.*\n\\)" (1 diff-indicator-added-face) (2 diff-added-face))
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175 ("^\\(!\\)\\(.*\n\\)" (1 diff-indicator-changed-face) (2 diff-changed-face))
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176 ("^Index: \\(.+\\).*\n" (0 diff-header-face) (1 diff-index-face prepend))
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177 ("^Only in .*\n" . diff-nonexistent-face)
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178 ("^\\(#\\)\\(.*\\)"
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179 (1 (if (facep 'font-lock-comment-delimiter-face)
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180 'font-lock-comment-face))
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181 (2 font-lock-comment-face))
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182 ("^[^-=+*!<>#].*\n" (0 diff-context-face))))
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183
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184 ;;;;;;;;;;;;;;;;;;;;;;;
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185
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186 (provide 'diff-mode-)
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187
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188 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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189 ;;; diff-mode-.el ends here