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7
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1 ;; various hacks
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2 ;; a compiled version exists!
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3 ;; Last edited: Thu Oct 2 16:47:40 1986
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4
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5 (provide 'misc)
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6
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7 (defun
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8 insert-time ()
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9 (interactive)
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10 (insert-string (current-time-string)))
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11
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12 (global-set-key "\et" 'insert-time)
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13
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14 (defun
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15 note-edit ()
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16 (interactive)
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17 (beginning-of-buffer)
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18 (if
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19 (not (search-forward "Last edited: " nil t))
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20 (progn (insert-string ";; Last edited: ")
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21 (newline)
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22 (forward-char -1))
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23 (if (not (looking-at "\n"))
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24 (kill-line)))
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25 (insert-time))
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26
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27 (global-set-key "\em" 'note-edit)
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28
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29 (defun save-and-pause()
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30 (interactive)
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31 (save-some-buffers t)
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32 (suspend-emacs))
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33
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34 (global-set-key "\C-x." 'save-and-pause)
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35
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36 (defun fix-comment-line ()
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37 "split comment onto enough lines to avoid overflow"
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38 (interactive)
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39 (indent-for-comment)
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40 (end-of-line)
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41 (if (> (current-column) 79)
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42 (progn
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43 (while (> (current-column) 79)
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44 (re-search-backward "[ ]"))
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45 (indent-new-comment-line)
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46 (end-of-line))))
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47
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48 (defun fix-all-comments ()
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49 "iterate over file with fix-comment-line"
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50 (interactive)
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51 (while (search-forward ";" nil t)
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52 (fix-comment-line)))
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53
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54 (global-set-key "\e:" 'fix-comment-line)
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55
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56 (defun grind-file ()
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57 "grind all forms in a lisp file"
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58 (interactive)
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59 (beginning-of-buffer)
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60 (while (re-search-forward "^(" nil t)
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61 (beginning-of-line)
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62 (indent-sexp)
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63 (end-of-line)))
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64
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65 (defun suggest-breaks ()
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66 "suggest line breaks to improve indentation"
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67 (interactive)
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68 (set-mark (point))
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69 (message "Trying to add line breaks to over-long lines . . .")
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70 (let (finished)
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71 (while (not (or finished
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72 (= (point)(point-max))))
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73 (end-of-line)
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74 (if (> (current-column) 79)
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75 (let* ((left (progn (beginning-of-line)
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76 (re-search-forward "[ ]*")
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77 (current-column)))
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78 (min-pt (point))
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79 (target (min 69 (/ (+ 79 left) 2))))
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80 (end-of-line)
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81 (while (and (> (current-column) target)
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82 (> (point) min-pt)
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83 (search-backward " " nil t)))
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84 (if (<= (point) min-pt)
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85 (progn (goto-char min-pt)
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86 (if (search-forward " " nil t)
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87 (backward-char 1)
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88 (message "losing %d %d %d" min-pt left target))))
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89 (let ((help-form (quote
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90 "y or <space> to break here,n or . or ! to stop, others interpreted"))
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91 (re-probe t)
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92 (char nil))
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93 (while re-probe
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94 (setq re-probe nil)
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95 (setq char (read-char))
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96 (cond ((or (= char ??)
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97 (= char help-char))
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98 (message help-form))
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99 ((or (= char ?\ )
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100 (= char ?y))
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101 (while (looking-at " ")
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102 (delete-char 1))
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103 (newline-and-indent)
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104 (message
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105 "Trying to add line breaks to over-long lines . . ."))
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106 ((or (= char ?n)
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107 (= char ?\.)
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108 (= char ?\!))
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109 nil)
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110 ((= char ?f)
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111 (forward-char 1)
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112 (search-forward " ")
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113 (backward-char 1)
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114 (setq re-probe t))
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115 ((= char ?b)
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116 (search-backward " ")
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117 (setq re-probe t))
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118 (t (setq unread-command-char char)
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119 (setq finished t))))))
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120 (forward-line)))
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121 (message "Trying to add line breaks to over-long lines . . . done.")))
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122
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123 (defun set-left-margin ()
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124 (interactive)
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125 (if (and margin-stack
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126 (< (current-column)(car margin-stack)))
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127 (setq margin-stack nil)
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128 (if (> (current-column) left-margin)
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129 (setq margin-stack (cons left-margin margin-stack))))
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130 (setq left-margin (current-column))
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131 (set-fill-prefix))
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132
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133 (defun pop-left-margin ()
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134 (interactive)
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135 (if margin-stack
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136 (progn (setq left-margin (car margin-stack))
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137 (setq margin-stack (cdr margin-stack)))
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138 (setq left-margin 0))
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139 (move-to-column left-margin)
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140 (set-fill-prefix))
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141
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142 (setq text-mode-hook `(lambda nil (progn ,@ (mapcar (function list)
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143 text-mode-hook))
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144 (turn-on-auto-fill)
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145 (abbrev-mode 1)
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146 (local-set-key "\C-cl" 'set-left-margin)
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147 (local-set-key "\C-cs" 'submerge-region)))
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148
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149 (global-set-key "\C-cp" 'pop-left-margin)
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150
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151 (setq margin-stack nil)
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152
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153 (global-set-key "\^Xn" 'other-window) ; as per emacs - used to be narrow
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154 (global-set-key "\^Xp" 'other-window-up) ; "
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155
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156 (defun other-window-up (n)
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157 (interactive "p")
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158 (other-window (- (or n 1))))
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159
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160 (defun minibuffer-electric-tilde ()
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161 ;; by Stig@hackvan.com
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162 (interactive)
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163 (and (eq ?/ (preceding-char))
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164 (delete-region (point-min) (point)))
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165 (insert ?~))
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166
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167
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168
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169 ;; Created by: Joe Wells, jbw@cs.bu.edu
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170 ;; Created on: Fri May 15 13:16:01 1992
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171 ;; Last modified by: Joe Wells, jbw@csd
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172 ;; Last modified on: Fri May 15 17:03:28 1992
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173 ;; Filename: backtrace-fix.el
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174 ;; Purpose: make backtrace useful when circular structures are on the stack
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175
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176 (or (fboundp 'original-backtrace)
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177 (fset 'original-backtrace
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178 (symbol-function 'backtrace)))
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179
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180 (defconst backtrace-junk "\
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181 original-backtrace()
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182 (condition-case ...)
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183 (let ...)
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184 (save-excursion ...)
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185 (let ...)
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186 ")
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187
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188 (defun circ-backtrace ()
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189 "Print a trace of Lisp function calls currently active.
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190 Output stream used is value of standard-output."
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191 (let (err-flag)
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192 (save-excursion
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193 (set-buffer (get-buffer-create " backtrace-temp"))
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194 (buffer-flush-undo (current-buffer))
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195 (erase-buffer)
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196 (let ((standard-output (current-buffer)))
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197 (condition-case err
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198 (original-backtrace)
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199 (error
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200 (setq error-flag err))))
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201 (cond (err-flag
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202 (goto-char (point-max))
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203 (beginning-of-line 1)
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204 ;; don't leave any unbalanced parens lying around
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205 (delete-region (point) (point-max))))
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206 (goto-char (point-min))
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207 (search-forward backtrace-junk nil t)
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208 (delete-region (point-min) (point))
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209 (princ (buffer-substring (point-min) (point-max)))))
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210 nil)
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211
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212 (defun install-circ-bt ()
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213 (fset 'backtrace
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214 (symbol-function 'circ-backtrace)))
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215
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216 (defvar submerge-prefix "> "
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217 "prefix to submerge quoted text with")
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218
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219 (defun submerge-region (&optional start end)
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220 "submerge the current region"
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221 (interactive "r")
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222 (let ((fill-prefix submerge-prefix))
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223 (indent-region start end nil)))
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