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1 ;;; -*- Mode:Emacs-Lisp -*-
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2 ;;; Copyright © 1990-1994 by Lucid, Inc. All Rights Reserved.
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3
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4 (defvar energize-auto-raise-screen t
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5 "If T frames are automatically raised when Energize wants to show them.")
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6
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7 (defvar energize-connect-hook nil
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8 "*Function or functions to run when the Energize connection is established.")
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9
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10 (defvar energize-disconnect-hook nil
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11 "*Function or functions to run when the Emacs/Energize connection is closed.")
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12
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13
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14 (defvar energize-screen-mode nil)
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15 (defvar energize-split-screens-p t)
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16
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17 (defun energize-multi-screen-mode ()
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18 "Call this function to put Energize into multi-frame mode.
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19
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20 A frame named \"debugger\" will be used for the *Debugger* buffer,
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21 and its associated source files.
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22 A frame named \"energize\" will be used for the Top-Level buffer.
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23 A frame named \"browser\" will be created for each L.E. Browser buffer.
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24 At most 5 of these will be created; then they will be reused.
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25 A frame named \"project\" will be created for each Project buffer.
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26 A frame named \"error-log\" will be created for the Error Log buffer
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27 and its associated source files (as when the Next Error command
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28 displays a source file.)
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29 A frame named \"manual\" will be created for each UNIX Manual page.
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30 At most 5 of these will be created; then they will be reused.
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31
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32 If an external editor is being used, then source files will be displayed
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33 read-only in the \"debugger\" frame.
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34
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35 If an external editor is not being used, then frames named \"sources\"
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36 will be created to edit source files. At most five of these will be
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37 created; then they will be reused. Find-file will use the current frame,
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38 whatever that happens to be, but find-file-other-window, and selecting
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39 source files from the Buffers menu will use an existing frame displaying
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40 the file in question, or create a new one if there isn't one.
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41
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42 Call `energize-single-screen-mode' to turn this off.
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43
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44 See the documentation for the function get-frame-for-buffer for
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45 information on how to customize this."
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46 (interactive)
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47 (put 'project 'instance-limit 0)
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48 (put 'sources 'instance-limit 5)
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49 (put 'manual 'instance-limit 5)
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50 (put 'browser 'instance-limit 5)
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51 (put 'energize-debugger-mode 'frame-name 'debugger)
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52 (put 'gdb-mode 'frame-name 'debugger)
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53 (put 'energize-top-level-mode 'frame-name 'energize)
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54 (put 'energize-browser-mode 'frame-name 'browser)
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55 (put 'energize-breakpoint-mode 'frame-name 'browser)
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56 (put 'energize-project-mode 'frame-name 'project)
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57 (put 'energize-no-file-project-mode 'frame-name 'project)
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58 (put 'energize-log-mode 'frame-name 'error-log)
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59 (put 'energize-manual-entry-mode 'frame-name 'manual)
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60 (if energize-external-editor
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61 (setq get-frame-for-buffer-default-frame-name 'debugger)
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62 ;; hmmmm...
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63 (setq get-frame-for-buffer-default-frame-name 'sources))
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64 (setq buffers-menu-switch-to-buffer-function 'pop-to-buffer)
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65 (setq energize-screen-mode 'multi)
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66 t)
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67
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68 (defun energize-several-screens-mode ()
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69 "Call this function to put Energize into multi-frame mode,
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70 but with only a few frames. See also `energize-multi-screen-mode'.
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71
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72 A frame named \"debugger\" will be used for the *Debugger* buffer,
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73 and its associated source files.
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74 A frame named \"energize\" will be used for the Top-Level buffer.
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75 A single frame named \"browser\" will be created for L.E. Browser buffers.
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76 A single frame named \"project\" will be created for Project buffers.
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77 A frame named \"error-log\" will be created for the Error Log buffer
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78 and its associated source files (as when the Next Error command
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79 displays a source file.)
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80 A single frame named \"manual\" will be created for UNIX Manual page buffers.
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81
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82 If an external editor is being used, then source files will be displayed
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83 read-only in the \"debugger\" frame.
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84
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85 If an external editor is not being used, then a single frame named
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86 \"sources\" will be created to edit source files. Find-file will use the
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87 current frame, whatever that happens to be, but find-file-other-window,
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88 and selecting source files from the Buffers menu will use an existing frame
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89 displaying the file in question, or create a new one if there isn't one.
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90
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91 Call `energize-single-screen-mode' to turn this off.
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92
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93 See the documentation for the function get-frame-for-buffer for
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94 information on how to customize this."
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95 (interactive)
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96 (energize-multi-screen-mode)
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97 (remprop 'browser 'instance-limit)
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98 (remprop 'project 'instance-limit)
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99 (remprop 'manual 'instance-limit)
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100 (remprop 'sources 'instance-limit)
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101 (setq energize-screen-mode 'several)
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102 t)
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103
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104 (defun energize-single-screen-mode ()
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105 "Call this function to put Energize into single-frame mode.
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106 All buffers will be displayed in the currently selected frame."
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107 (interactive)
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108 (remprop 'browser 'instance-limit)
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109 (remprop 'project 'instance-limit)
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110 (remprop 'manual 'instance-limit)
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111 (remprop 'sources 'instance-limit)
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112 (remprop 'energize-debugger-mode 'frame-name)
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113 (remprop 'gdb-mode 'frame-name)
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114 (remprop 'energize-top-level-mode 'frame-name)
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115 (remprop 'energize-browser-mode 'frame-name)
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116 (remprop 'energize-breakpoint-mode 'frame-name)
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117 (remprop 'energize-project-mode 'frame-name)
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118 (remprop 'energize-no-file-project-mode 'frame-name)
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119 (remprop 'energize-log-mode 'frame-name)
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120 (remprop 'energize-manual-entry-mode 'frame-name)
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121 (setq get-frame-for-buffer-default-frame-name nil)
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122 (setq buffers-menu-switch-to-buffer-function 'switch-to-buffer)
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123 (setq energize-screen-mode 'single)
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124 nil)
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125
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126 (energize-single-screen-mode)
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127
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128
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129 ;;; Connecting and disconnecting
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130
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131 (or energize-attributes-mapping
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132 (setq energize-attributes-mapping
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133 (purecopy
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134 '((0 . default)
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135 (1 . bold)
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136 (2 . italic)
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137 (3 . bold-italic)
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138 (4 . attributeSmall)
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139 (50 . attributeGlyph)
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140 (51 . attributeSectionHeader)
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141 (52 . attributeToplevelFormGlyph)
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142 (53 . attributeModifiedToplevelFormGlyph)
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143 (54 . attributeBrowserHeader)
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144 (68 . attributeWriteProtected)
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145 (69 . attributeModifiedText)
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146 ))))
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147
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148 ;; Make the faces before emacs is dumped - this should be ok, they will be
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149 ;; initialized from the resource database when the first frame is created.
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150 (let ((rest energize-attributes-mapping))
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151 (while rest
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152 (make-face (cdr (car rest)))
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153 (setq rest (cdr rest))))
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154
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155
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156 (defun any-energize-buffers-p ()
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157 (let ((rest (buffer-list))
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158 (result nil))
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159 (while rest
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160 (if (energize-buffer-p (car rest))
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161 (setq result (car rest) rest nil)
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162 (setq rest (cdr rest))))
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163 result))
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164
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165 (defun connect-to-energize (server &optional enarg)
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166 "Connect this emacs to a Energize server.
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167 The SERVER argument should be the name of the host that the kernel is
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168 running on (empty-string for localhost). It may also be of the form
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169 ``hostname:user'' or ``:user'', meaning to use the server running with
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170 userid USER."
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171 (interactive (if (connected-to-energize-p)
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172 (error "Already connected to the server.") ; you bogon.
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173 (list (read-string "connect to energize server: "))))
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174 (if (connected-to-energize-p)
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175 (error "Already connected to the server.")) ; you bogon.
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176 (if (or (null server) (equal server ""))
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177 (setq server (or (getenv "ENERGIZE_PORT") (system-name))))
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178 (setq default-frame-name "energize")
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179 (energize-rename-things)
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180 (energize-hack-external-editor-mode)
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181
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182 (let ((energize-disconnect-hook
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183 ;; If we're being run interactively, don't exit emacs if connecting
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184 ;; to Energize fails! That's damn annoying.
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185 (if (and (interactive-p)
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186 (consp energize-disconnect-hook)
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187 (memq 'save-buffers-kill-emacs energize-disconnect-hook))
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188 (delq 'save-buffers-kill-emacs
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189 (copy-sequence energize-disconnect-hook))
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190 energize-disconnect-hook)))
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191
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192 (connect-to-energize-internal server enarg)
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193 ;; Wait for the Top-Level buffer to be created.
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194 ;; This really should happen down in C, but...
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195 (let ((p (or (get-process "energize")
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196 (error "Could not connect to Energize.")))
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197 b)
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198 (while (progn
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199 (or (connected-to-energize-p)
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200 (error "Energize connection refused."))
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201 (not (setq b (any-energize-buffers-p))))
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202 (accept-process-output p))
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203 ;; Make the displayed Energize buffer initially displayed.
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204 (pop-to-buffer b)
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205 (delete-other-windows)
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206 (run-hooks 'energize-connect-hook))))
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207
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208 (defun disconnect-from-energize ()
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209 (interactive)
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210 "Close the connection to energize"
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211 (close-connection-to-energize))
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212
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213 ;;; Energizing all buffers
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214 ;; After being connected to energize this function energizes all the
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215 ;; buffers that contain files that Energize knows about.
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216
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217 (defun energize-all-buffers ()
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218 "Energize any buffer showing a file that the Energize server knows about.
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219 Has to be called after Emacs has been connected to Energize"
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220 (if (not (connected-to-energize-p))
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221 (error "You have to connect to Energize first"))
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222 (save-window-excursion
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223 (save-excursion
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224 (let ((buffers (buffer-list))
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225 (buffers-to-avoid '())
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226 (lock-directory nil)
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227 buffer
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228 filename)
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229 (while buffers
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230 (setq buffer (car buffers))
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231 (setq buffers (cdr buffers))
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232 (setq filename (buffer-file-name buffer))
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233 (set-buffer buffer)
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234 (cond
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235 ((and filename
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236 (not (energize-buffer-p buffer))
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237 (energize-query-buffer filename t))
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238 (cond ((buffer-modified-p)
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239 (if (y-or-n-p
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240 (format
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241 "Buffer %s must be saved to be Energized; save it? "
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242 (buffer-name buffer)))
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243 (progn
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244 (set-buffer buffer) ; oh, man...
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245 (save-buffer))
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246 ;; said "no"
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247 (setq buffers-to-avoid (cons buffer buffers-to-avoid))))
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248
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249 ((and (null (verify-visited-file-modtime buffer))
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250 (file-exists-p filename))
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251 (set-buffer buffer)
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252 (if (y-or-n-p
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253 (format "Buffer %s has changed on disk, revert? "
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254 (buffer-name buffer)))
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255 (progn
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256 (set-buffer buffer)
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257 (revert-buffer nil t))
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258 ;; said "no"
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259 (setq buffers-to-avoid (cons buffer buffers-to-avoid))))
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260
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261 ;; It's wrong to check to also see if someone else is locking
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262 ;; the file. The file is already in the buffer, and the user
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263 ;; isn't really modifying it -- we're just rewriting it because
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264 ;; energize likes to do that. That's why locking should be
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265 ;; disabled here.
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266 )
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267 (if (not (memq buffer buffers-to-avoid))
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268 (progn
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269 (message "Energizing buffer %s..." (buffer-name buffer))
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270 (find-file-noselect filename))
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271 (message (format "Buffer %s not Energized." (buffer-name buffer)))
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272 (sit-for 1)))))
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273 (message nil)))))
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274
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275 (add-hook 'energize-connect-hook 'energize-all-buffers)
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276
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277
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278 ;; This is called when the connection to Energize is lose (for whatever
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279 ;; reason). We could just run the energize-disconnect-hook from C and
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280 ;; put this function on it, but then the user could hurt themselves.
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281 ;;
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282 (defun de-energize-all-buffers ()
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283 (save-excursion
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284 (let ((buffers (buffer-list))
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285 buffer)
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286 (while buffers
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287 (condition-case condition
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288 (progn
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289 (setq buffer (car buffers))
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290 (set-buffer buffer)
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291 (cond ((not (energize-buffer-p buffer))
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292 nil)
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293 ((eq (energize-buffer-type buffer) 'energize-source-buffer)
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294 (map-extents
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295 (function (lambda (extent ignore)
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296 (if (extent-property extent 'energize)
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297 (delete-extent extent))
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298 nil))
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299 buffer)
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300 (remove-hook 'write-file-data-hooks
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301 'energize-write-data-hook)
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302 (setq revert-buffer-insert-file-contents-function nil)
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303 (ad-Orig-normal-mode-after-energize) ; #### necessary?
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304 )
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305 (t ; non-source-file Energize buffers
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306 (set-buffer-modified-p nil)
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307 (if (eq (other-buffer buffer) buffer)
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308 (set-buffer (get-buffer-create "*scratch*"))
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309 (set-buffer (other-buffer buffer)))
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310 (kill-buffer buffer))))
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311 (error ;; condition-case clause
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312 (beep)
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313 (message "Error while de-Energizing: %s" condition)))
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314 (setq buffers (cdr buffers)))))
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315 ;; now clean the menubar
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316 (deactivate-all-energize-menu-items)
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317 (energize-rename-things 'back)
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318 (run-hooks 'energize-disconnect-hook)
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319 nil)
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320
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321
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322 (defun energize-rename-things (&optional back)
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323 ;; People who don't like emacs don't like seeing the word "Emacs" either
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324 (let ((case-fold-search t))
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325 (if (and (consp mode-line-buffer-identification)
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326 (stringp (car mode-line-buffer-identification))
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327 (string-match (if back "\\bEnergize\\b"
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328 "\\bL?Emacs\\([- \t]*[-._0-9]+\\)?\\b")
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329 (car mode-line-buffer-identification)))
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330 (setq-default mode-line-buffer-identification
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331 (cons
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332 (concat (substring (car mode-line-buffer-identification)
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333 0 (match-beginning 0))
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334 (if back "Emacs" "Energize")
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335 (substring (car mode-line-buffer-identification)
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336 (match-end 0)))
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337 (cdr mode-line-buffer-identification))))
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338 ; (if (stringp frame-title-format)
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339 ; (if back
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340 ; (if (string-match "^Energize\\b ?" frame-title-format)
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341 ; (setq-default frame-title-format "%S: %b"))
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342 ; (or (string-match "Energize" frame-title-format)
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343 ; (setq-default frame-title-format "Energize: %b"))))
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344 )
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345 nil)
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346
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347
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348
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349 ;;; The kernel is very random about the buffer-types it returns.
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350 ;;; This is a temporary permanent fix...
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351
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352 (defun energize-buffer-type (buffer)
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353 "Returns a symbol denoting the type of an Energize buffer, or nil."
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354 (let ((type (energize-buffer-type-internal buffer)))
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355 (cond ((eq type 'energize-top-level-buffer)
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356 (cond ((equal "Error Log" (buffer-name buffer))
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357 'energize-error-log-buffer)
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358 ((equal "*includers*" (buffer-name buffer))
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359 'energize-includers-buffer)
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360 ((string-match "^Browser" (buffer-name buffer))
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361 'energize-browser-buffer)
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362 (t type)))
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363 ((eq type 'energize-unspecified-buffer)
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364 (signal 'error (list "buffer type unspecified" buffer)))
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365 ((and (null type) (energize-buffer-p buffer))
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366 (signal 'error
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367 (list "null buffer type for energize buffer" buffer)))
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368 (t type))))
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369
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370 (defun energize-extent-at (pos &optional buffer)
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371 (extent-at pos buffer 'energize))
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372
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373 (defun non-energize-errors-exist-p ()
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374 ;; Whether `next-error' executed right now should do the emacs thing.
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375 ;; If we're in a *grep* or *compile* buffer, always do the emacs thing.
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376 ;; If we're in the Error Log, always do the Energize thing.
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377 ;; Otherwise, do the emacs thing if it would succeed; otherwise do the
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378 ;; Energize thing.
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379 (or (compilation-buffer-p (current-buffer)) ; in *grep*
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380 (and (not (eq (energize-buffer-type (current-buffer)) ; in ErrLog
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381 'energize-error-log-buffer))
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382 ;; defined in compile.el (a XEmacs addition).
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383 (compilation-errors-exist-p))))
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384
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385
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386 ;;; Misc Energize hook functions
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387
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388 (defvar inside-energize-buffer-creation-hook-function nil)
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389
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390 (defun energize-buffer-creation-hook-function (buffer)
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391 ;; This loser is called every time Energize wants to create a buffer,
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392 ;; whether it is being spontaniously displayed (as by the debugger) or
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393 ;; as a result of calling find-file -> energize-find-file-noselect ->
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394 ;; energize-query-buffer.
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395 (let ((inside-energize-buffer-creation-hook-function t))
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396 ;; the above is so we can call this from normal-mode, except when
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397 ;; we're calling normal-mode.
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398 (save-excursion
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399 (set-buffer buffer)
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400
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401 ;; Energize always hands us truenames, or something close to them
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402 ;; (it chomps the /tmp_mnt/ automounter cruft off.) Let the user
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403 ;; set up a pretty translation just like they can for normal files.
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404 (if buffer-file-name
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405 (setq buffer-file-name (abbreviate-file-name
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406 (expand-file-name buffer-file-name))
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407 default-directory (file-name-directory buffer-file-name))
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408 (setq default-directory
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409 (abbreviate-file-name (expand-file-name default-directory))))
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410
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411 (if buffer-file-name (set-buffer-modtime buffer))
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412
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413 (let ((type (energize-buffer-type buffer)))
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414 (cond ((eq type 'energize-top-level-buffer)
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415 (energize-top-level-mode))
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416 ((eq type 'energize-browser-buffer)
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417 (energize-browser-mode))
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418 ((eq type 'energize-includers-buffer)
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419 (energize-browser-mode))
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420 ((or (eq type 'energize-error-log-buffer)
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421 (eq type 'energize-log-file-buffer))
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422 (energize-log-mode)
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423 (setq buffer-read-only t))
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424 ((eq type 'energize-project-buffer)
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425 (if (buffer-file-name)
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426 (energize-project-mode)
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427 (energize-no-file-project-mode)))
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428 ((eq type 'energize-debugger-buffer)
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429 (energize-debugger-mode))
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430 ((eq type 'energize-breakpoint-buffer)
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431 (energize-breakpoint-mode))
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432 ((eq type 'energize-unix-manual-buffer)
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433 (energize-manual-mode))
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434 ((or (eq type 'energize-source-buffer)
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435 ;;(eq type 'energize-unspecified-buffer)
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436 ;;(null type)
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437 )
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438 (compute-buffer-file-truename)
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439 (if (buffer-file-name buffer)
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440 (after-find-file nil t)
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441 (funcall default-major-mode))
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442 )
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443 (t
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444 (signal 'error (list "unknown energize buffer type" type)))))
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445
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446 (if (eq (energize-buffer-type (current-buffer)) 'energize-source-buffer)
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447 (energize-source-minor-mode))
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448
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449 (energize-external-editor-set-mode buffer)
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450 )))
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451
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452 (setq energize-create-buffer-hook 'energize-buffer-creation-hook-function)
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453
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454 ;;; Buffer modified hook
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455
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456 (defun energize-send-buffer-modified-1 (start end)
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457 (if (not (energize-buffer-p (current-buffer)))
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458 nil
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459 (map-extents #'(lambda (ext ignore)
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460 (and (extent-property ext 'energize)
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461 (set-extent-face ext 'attributeModifiedText))
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462 nil)
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463 (current-buffer) start end)
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464 (energize-send-buffer-modified t start end)))
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465
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466 (add-hook 'before-change-functions 'energize-send-buffer-modified-1)
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467
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468 ;;; Reverting buffers
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469 ;;; This is called when Energize has informed us that a buffer has changed
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470 ;;; on disk, and we need to revert.
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471
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472 (defun energize-auto-revert-buffer (buf)
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473 (cond ((not (file-exists-p (buffer-file-name buf)))
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474 ;; Signal an error here? Naah, let someone else deal with it.
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475 nil)
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476 ;; If it's not modified, just revert. If it is modified, ask.
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477 ((or (not (buffer-modified-p buf))
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478 (yes-or-no-p
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479 (format "File %s changed on disk. Discard your edits? "
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480 (file-name-nondirectory (buffer-file-name buf)))))
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481 (save-excursion
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482 (set-buffer buf)
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483 (revert-buffer t t)))))
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484
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485 ;;; Energize kernel busy hook
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486
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487 (defun energize-message-if-not-in-minibuffer (reason)
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488 (if (not (eq (selected-window) (minibuffer-window)))
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489 (message reason)))
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490
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491 (setq energize-kernel-busy-hook 'energize-message-if-not-in-minibuffer)
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492
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493 ;;; set-buffer-modified-p hook
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494
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495 (defun energize-send-buffer-modified-2 (state start end)
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496 (if (not (energize-buffer-p (current-buffer)))
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497 nil
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498 (if (not state)
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499 ;; If we're unmodifying the buffer, un-highlight all Energize extents.
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500 (let ((e (next-extent (current-buffer))))
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501 (while e
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502 (if (and (extent-property e 'energize)
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503 (eq (extent-face e) 'attributeModifiedText))
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504 (set-extent-face e nil))
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505 (setq e (next-extent e)))))
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506 (energize-send-buffer-modified state start end)))
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507
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508 (setq energize-buffer-modified-hook 'energize-send-buffer-modified-2)
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509
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510 ;;; hook in editorside.c
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511
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512 (setq energize-kernel-modification-hook nil)
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513
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514
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515 ;; command line
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516
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517 (defconst energize-args '(("-energize" . command-line-process-energize)
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518 ("-context" . command-line-process-energize-1)
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519 ("-beam-me-up" . command-line-process-energize-1)))
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520
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521 (setq command-switch-alist (append command-switch-alist energize-args))
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522
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523 (fset 'command-line-process-energize 'command-line-process-energize-1)
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524 (put 'command-line-process-energize-1 'undocumented t)
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525 (defun command-line-process-energize-1 (arg)
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526 "Connect to the Energize server at $ENERGIZE_PORT."
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527 (let ((e-arg (car command-line-args-left))
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528 (e-host (getenv "ENERGIZE_PORT"))) ; maybe nil
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529 (if (and e-arg (string-match "\\`[0-9a-fA-F]+[,][0-9a-fA-F]+\\'" e-arg))
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530 (setq command-line-args-left (cdr command-line-args-left))
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531 (setq e-arg nil))
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532 (message "Connecting to Energize...")
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533 (sit-for 0)
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534 (condition-case ()
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535 (connect-to-energize e-host e-arg)
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536 (error
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537 (beep)
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538 (if e-host
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539 (message "Failed to connect to Energize at %s." e-host)
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540 (message "Failed to connect to Energize."))
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541 (sit-for 1)))))
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542
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543
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544 ;;; Originally defined in frame.el
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545 ;;; If we're being invoked with -energize, then set the default
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546 ;;; frame name to "energize"
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547 ;;; This is a total kludge; there ought to be a hook that gets
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548 ;;; run before the first frame is created (either before or
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549 ;;; after term/x-win.el is loaded.)
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550
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551 (or (fboundp 'energize-orig-frame-initialize)
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552 (fset 'energize-orig-frame-initialize
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553 (symbol-function 'frame-initialize)))
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554
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555 (defun frame-initialize ()
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556 (if (let ((rest energize-args))
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557 (catch 'done
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558 (while rest
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559 (if (member (car (car rest)) command-line-args)
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560 (throw 'done t))
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561 (setq rest (cdr rest)))
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562 nil))
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563 (setq default-frame-name "energize"))
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564 (energize-orig-frame-initialize))
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565
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566 (defun energize-x-initializations ()
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567 (cond ((not noninteractive)
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568 (energize-define-function-keys)
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569 (energize-configure-font-lock-mode t (not (x-color-display-p)) t)
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570 ;; faces will be initialized from the resource database when the first
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571 ;; frame is created.
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572 (let ((rest energize-attributes-mapping))
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573 (while rest
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574 (make-face (cdr (car rest)))
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575 (setq rest (cdr rest))))
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576 )))
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577
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578 ;; Do these bindings after connecting to the X server, but before
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579 ;;; loading any init files, so that init files can override them.
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580 (add-hook 'before-init-hook 'energize-x-initializations)
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