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280
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1 ;;; select.el --- Lisp interface to windows selections.
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2
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3 ;; Copyright (C) 1998 Andy Piper.
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4 ;; Copyright (C) 1990, 1997 Free Software Foundation, Inc.
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5 ;; Copyright (C) 1995 Sun Microsystems.
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6
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7 ;; Maintainer: XEmacs Development Team
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8 ;; Keywords: extensions, dumped
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9
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10 ;; This file is part of XEmacs.
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11
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12 ;; XEmacs is free software; you can redistribute it and/or modify it
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13 ;; under the terms of the GNU General Public License as published by
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14 ;; the Free Software Foundation; either version 2, or (at your option)
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15 ;; any later version.
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16
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17 ;; XEmacs is distributed in the hope that it will be useful, but
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18 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 ;; General Public License for more details.
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21
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22 ;; You should have received a copy of the GNU General Public License
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23 ;; along with XEmacs; see the file COPYING. If not, write to the
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24 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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25 ;; Boston, MA 02111-1307, USA.
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26
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27 ;;; Synched up with: Not in FSF
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28
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29 ;;; Commentary:
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30
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31 ;; This file is dumped with XEmacs
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32
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33 ;;; Code:
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34
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398
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35 (defvar selected-text-type
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36 (if (featurep 'mule) '(COMPOUND_TEXT STRING) 'STRING)
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37 "The type atom used to obtain selections from the X server.
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38 Can be either a valid X selection data type, or a list of such types.
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39 COMPOUND_TEXT and STRING are the most commonly used data types.
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40 If a list is provided, the types are tried in sequence until
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41 there is a successful conversion.")
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42
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43 (defvar selection-sets-clipboard nil
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44 "Controls the selection's relationship to the clipboard.
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45 When non-nil, any operation that sets the primary selection will also
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46 set the clipboard.")
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47
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280
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48 (defun copy-primary-selection ()
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49 "Copy the selection to the Clipboard and the kill ring."
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50 (interactive)
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286
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51 (and (console-on-window-system-p)
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52 (cut-copy-clear-internal 'copy)))
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280
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53
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54 (defun kill-primary-selection ()
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55 "Copy the selection to the Clipboard and the kill ring, then delete it."
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56 (interactive "*")
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286
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57 (and (console-on-window-system-p)
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58 (cut-copy-clear-internal 'cut)))
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280
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59
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60 (defun delete-primary-selection ()
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61 "Delete the selection without copying it to the Clipboard or the kill ring."
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62 (interactive "*")
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286
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63 (and (console-on-window-system-p)
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64 (cut-copy-clear-internal 'clear)))
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280
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65
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66 (defun yank-clipboard-selection ()
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67 "Insert the current Clipboard selection at point."
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68 (interactive "*")
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398
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69 (when (console-on-window-system-p)
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70 (setq last-command nil)
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71 (setq this-command 'yank) ; so that yank-pop works.
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72 (let ((clip (get-clipboard)))
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73 (or clip (error "there is no clipboard selection"))
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74 (push-mark)
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75 (insert clip))))
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76
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77 (defun get-clipboard ()
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78 "Return text pasted to the clipboard."
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79 (get-selection 'CLIPBOARD))
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80
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81 (define-device-method get-cutbuffer
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82 "Return the value of one of the cut buffers.
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83 This will do nothing under anything other than X.")
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84
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85 (defun get-selection-no-error (&optional type data-type)
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86 "Return the value of a Windows selection.
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87 The argument TYPE (default `PRIMARY') says which selection,
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88 and the argument DATA-TYPE (default `STRING', or `COMPOUND_TEXT' under Mule)
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89 says how to convert the data. Returns NIL if there is no selection"
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90 (condition-case err (get-selection type data-type) (t nil)))
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280
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91
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398
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92 (defun get-selection (&optional type data-type)
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93 "Return the value of a Windows selection.
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94 The argument TYPE (default `PRIMARY') says which selection,
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95 and the argument DATA-TYPE (default `STRING', or `COMPOUND_TEXT' under Mule)
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96 says how to convert the data. If there is no selection an error is signalled."
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97 (or type (setq type 'PRIMARY))
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98 (or data-type (setq data-type selected-text-type))
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99 (let ((text
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100 (if (consp data-type)
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101 (condition-case err
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102 (get-selection-internal type (car data-type))
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103 (selection-conversion-error
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104 (if (cdr data-type)
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105 (get-selection type (cdr data-type))
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106 (signal (car err) (cdr err)))))
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107 (get-selection-internal type data-type))))
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108 (when (and (consp text) (symbolp (car text)))
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109 (setq text (cdr text)))
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110 (when (not (stringp text))
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111 (error "Selection is not a string: %S" text))
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112 text))
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280
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113
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398
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114 ;; FSFmacs calls this `x-set-selection', and reverses the
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115 ;; arguments (duh ...). This order is more logical.
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280
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116 (defun own-selection (data &optional type)
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117 "Make an Windows selection of type TYPE and value DATA.
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118 The argument TYPE (default `PRIMARY') says which selection,
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119 and DATA specifies the contents. DATA may be a string,
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120 a symbol, an integer (or a cons of two integers or list of two integers).
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121
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122 The selection may also be a cons of two markers pointing to the same buffer,
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123 or an overlay. In these cases, the selection is considered to be the text
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124 between the markers *at whatever time the selection is examined*.
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125 Thus, editing done in the buffer after you specify the selection
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126 can alter the effective value of the selection.
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127
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128 The data may also be a vector of valid non-vector selection values.
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129
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130 Interactively, the text of the region is used as the selection value."
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131 (interactive (if (not current-prefix-arg)
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132 (list (read-string "Store text for pasting: "))
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133 (list (substring (region-beginning) (region-end)))))
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398
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134 ;FSFmacs huh?? It says:
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135 ;; "This is for temporary compatibility with pre-release Emacs 19."
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136 ;(if (stringp type)
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137 ; (setq type (intern type)))
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138 (or (valid-simple-selection-p data)
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139 (and (vectorp data)
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140 (let ((valid t)
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141 (i (1- (length data))))
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142 (while (>= i 0)
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143 (or (valid-simple-selection-p (aref data i))
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144 (setq valid nil))
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145 (setq i (1- i)))
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146 valid))
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147 (signal 'error (list "invalid selection" data)))
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148 (or type (setq type 'PRIMARY))
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149 (if (null data)
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150 (disown-selection-internal type)
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151 (own-selection-internal type data)
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152 (when (and (eq type 'PRIMARY)
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153 selection-sets-clipboard)
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154 (own-selection-internal 'CLIPBOARD data)))
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155 (cond ((eq type 'PRIMARY)
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156 (setq primary-selection-extent
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157 (select-make-extent-for-selection
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158 data primary-selection-extent)))
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159 ((eq type 'SECONDARY)
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160 (setq secondary-selection-extent
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161 (select-make-extent-for-selection
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162 data secondary-selection-extent))))
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163 (setq zmacs-region-stays t)
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164 data)
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165
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166 (defun dehilight-selection (selection)
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167 "for use as a value of `lost-selection-hooks'."
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168 (cond ((eq selection 'PRIMARY)
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169 (if primary-selection-extent
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170 (let ((inhibit-quit t))
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171 (if (consp primary-selection-extent)
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172 (mapcar 'delete-extent primary-selection-extent)
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173 (delete-extent primary-selection-extent))
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174 (setq primary-selection-extent nil)))
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175 (if zmacs-regions (zmacs-deactivate-region)))
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176 ((eq selection 'SECONDARY)
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177 (if secondary-selection-extent
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178 (let ((inhibit-quit t))
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179 (if (consp secondary-selection-extent)
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180 (mapcar 'delete-extent secondary-selection-extent)
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181 (delete-extent secondary-selection-extent))
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182 (setq secondary-selection-extent nil)))))
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183 nil)
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184
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185 (setq lost-selection-hooks 'dehilight-selection)
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280
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186
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286
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187 (defun own-clipboard (string)
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398
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188 "Paste the given string to the window system Clipboard."
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189 (own-selection string 'CLIPBOARD))
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286
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190
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280
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191 (defun disown-selection (&optional secondary-p)
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192 "Assuming we own the selection, disown it. With an argument, discard the
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193 secondary selection instead of the primary selection."
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398
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194 (disown-selection-internal (if secondary-p 'SECONDARY 'PRIMARY))
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195 (when (and selection-sets-clipboard
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196 (or (not secondary-p)
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197 (eq secondary-p 'PRIMARY)
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198 (eq secondary-p 'CLIPBOARD)))
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199 (disown-selection-internal 'CLIPBOARD)))
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286
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200
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280
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201 ;; from x-init.el
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202 ;; selections and active regions
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203
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204 ;; If and only if zmacs-regions is true:
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205
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206 ;; When a mark is pushed and the region goes into the "active" state, we
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207 ;; assert it as the Primary selection. This causes it to be hilighted.
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208 ;; When the region goes into the "inactive" state, we disown the Primary
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209 ;; selection, causing the region to be dehilighted.
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210
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211 ;; Note that it is possible for the region to be in the "active" state
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212 ;; and not be hilighted, if it is in the active state and then some other
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213 ;; application asserts the selection. This is probably not a big deal.
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214
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215 (defun activate-region-as-selection ()
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216 (if (marker-buffer (mark-marker t))
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217 (own-selection (cons (point-marker t) (mark-marker t)))))
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218
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219 ; moved from x-select.el
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220 (defvar primary-selection-extent nil
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221 "The extent of the primary selection; don't use this.")
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222
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223 (defvar secondary-selection-extent nil
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224 "The extent of the secondary selection; don't use this.")
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225
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226 (defun select-make-extent-for-selection (selection previous-extent)
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227 ;; Given a selection, this makes an extent in the buffer which holds that
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228 ;; selection, for highlighting purposes. If the selection isn't associated
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229 ;; with a buffer, this does nothing.
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230 (let ((buffer nil)
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231 (valid (and (extentp previous-extent)
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232 (extent-object previous-extent)
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233 (buffer-live-p (extent-object previous-extent))))
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234 start end)
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235 (cond ((stringp selection)
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236 ;; if we're selecting a string, lose the previous extent used
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237 ;; to highlight the selection.
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238 (setq valid nil))
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239 ((consp selection)
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240 (setq start (min (car selection) (cdr selection))
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241 end (max (car selection) (cdr selection))
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242 valid (and valid
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243 (eq (marker-buffer (car selection))
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244 (extent-object previous-extent)))
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245 buffer (marker-buffer (car selection))))
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246 ((extentp selection)
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247 (setq start (extent-start-position selection)
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248 end (extent-end-position selection)
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249 valid (and valid
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250 (eq (extent-object selection)
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251 (extent-object previous-extent)))
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252 buffer (extent-object selection)))
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253 (t
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254 (signal 'error (list "invalid selection" selection))))
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255
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256 (if valid
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257 nil
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258 (condition-case ()
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259 (if (listp previous-extent)
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260 (mapcar 'delete-extent previous-extent)
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261 (delete-extent previous-extent))
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262 (error nil)))
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263
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264 (if (not buffer)
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265 ;; string case
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266 nil
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267 ;; normal case
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268 (if valid
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269 (set-extent-endpoints previous-extent start end)
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270 (setq previous-extent (make-extent start end buffer))
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271
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272 ;; Make the extent be closed on the right, which means that if
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273 ;; characters are inserted exactly at the end of the extent, the
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274 ;; extent will grow to cover them. This is important for shell
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275 ;; buffers - suppose one makes a selection, and one end is at
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276 ;; point-max. If the shell produces output, that marker will remain
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277 ;; at point-max (its position will increase). So it's important that
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278 ;; the extent exhibit the same behavior, lest the region covered by
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279 ;; the extent (the visual indication), and the region between point
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280 ;; and mark (the actual selection value) become different!
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281 (set-extent-property previous-extent 'end-open nil)
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282
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283 (cond
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284 (mouse-track-rectangle-p
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285 (setq previous-extent (list previous-extent))
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286 (default-mouse-track-next-move-rect start end previous-extent)
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287 ))
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288 previous-extent))))
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289
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290 ;; moved from x-select.el
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291 (defun valid-simple-selection-p (data)
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292 (or (stringp data)
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293 ;FSFmacs huh?? (symbolp data)
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294 (integerp data)
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295 (and (consp data)
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296 (integerp (car data))
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297 (or (integerp (cdr data))
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298 (and (consp (cdr data))
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299 (integerp (car (cdr data))))))
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300 (extentp data)
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301 (and (consp data)
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302 (markerp (car data))
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303 (markerp (cdr data))
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304 (marker-buffer (car data))
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305 (marker-buffer (cdr data))
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306 (eq (marker-buffer (car data))
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307 (marker-buffer (cdr data)))
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308 (buffer-live-p (marker-buffer (car data)))
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309 (buffer-live-p (marker-buffer (cdr data))))))
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310
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286
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311 (defun cut-copy-clear-internal (mode)
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312 (or (memq mode '(cut copy clear)) (error "unkown mode %S" mode))
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313 (or (selection-owner-p)
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388
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314 (error "XEmacs does not own the primary selection"))
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286
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315 (setq last-command nil)
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316 (or primary-selection-extent
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317 (error "the primary selection is not an extent?"))
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318 (save-excursion
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319 (let (rect-p b s e)
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320 (cond
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321 ((consp primary-selection-extent)
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322 (setq rect-p t
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323 b (extent-object (car primary-selection-extent))
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324 s (extent-start-position (car primary-selection-extent))
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325 e (extent-end-position (car (reverse primary-selection-extent)))))
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326 (t
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327 (setq rect-p nil
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328 b (extent-object primary-selection-extent)
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329 s (extent-start-position primary-selection-extent)
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330 e (extent-end-position primary-selection-extent))))
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331 (set-buffer b)
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332 (cond ((memq mode '(cut copy))
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333 (if rect-p
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334 (progn
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335 ;; why is killed-rectangle free? Is it used somewhere?
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336 ;; should it be defvarred?
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337 (setq killed-rectangle (extract-rectangle s e))
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380
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338 (kill-new (mapconcat #'identity killed-rectangle "\n")))
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286
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339 (copy-region-as-kill s e))
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340 ;; Maybe killing doesn't own clipboard. Make sure it happens.
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341 ;; This memq is kind of grody, because they might have done it
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342 ;; some other way, but owning the clipboard twice in that case
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343 ;; wouldn't actually hurt anything.
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344 (or (and (consp kill-hooks) (memq 'own-clipboard kill-hooks))
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345 (own-clipboard (car kill-ring)))))
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346 (cond ((memq mode '(cut clear))
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347 (if rect-p
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348 (delete-rectangle s e)
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349 (delete-region s e))))
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350 (disown-selection nil)
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351 )))
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398
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352
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353 ;;; Functions to convert the selection into various other selection
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354 ;;; types. Every selection type that emacs handles is implemented
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355 ;;; this way, except for TIMESTAMP, which is a special case. These are
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356 ;;; all moved from x-select.el
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357
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358 (defun select-convert-to-text (selection type value)
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359 (cond ((stringp value)
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360 value)
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361 ((extentp value)
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362 (save-excursion
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363 (set-buffer (extent-object value))
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364 (save-restriction
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365 (widen)
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366 (buffer-substring (extent-start-position value)
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367 (extent-end-position value)))))
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368 ((and (consp value)
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369 (markerp (car value))
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370 (markerp (cdr value)))
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371 (or (eq (marker-buffer (car value)) (marker-buffer (cdr value)))
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372 (signal 'error
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373 (list "markers must be in the same buffer"
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374 (car value) (cdr value))))
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375 (save-excursion
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376 (set-buffer (or (marker-buffer (car value))
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377 (error "selection is in a killed buffer")))
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378 (save-restriction
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379 (widen)
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380 (buffer-substring (car value) (cdr value)))))
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381 (t nil)))
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382
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383 (defun select-convert-to-string (selection type value)
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384 (let ((outval (select-convert-to-text selection type value)))
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385 ;; force the string to be not in Compound Text format.
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386 (if (stringp outval)
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387 (cons 'STRING outval)
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388 outval)))
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389
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390 (defun select-convert-to-compound-text (selection type value)
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391 ;; converts to compound text automatically
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392 (select-convert-to-text selection type value))
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393
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394 (defun select-convert-to-length (selection type value)
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395 (let ((value
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396 (cond ((stringp value)
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397 (length value))
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398 ((extentp value)
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399 (extent-length value))
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400 ((and (consp value)
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401 (markerp (car value))
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402 (markerp (cdr value)))
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403 (or (eq (marker-buffer (car value))
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404 (marker-buffer (cdr value)))
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405 (signal 'error
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406 (list "markers must be in the same buffer"
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407 (car value) (cdr value))))
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408 (abs (- (car value) (cdr value)))))))
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409 (if value ; force it to be in 32-bit format.
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410 (cons (ash value -16) (logand value 65535))
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411 nil)))
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412
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413 (defun select-convert-to-targets (selection type value)
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414 ;; return a vector of atoms, but remove duplicates first.
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415 (let* ((all (cons 'TIMESTAMP (mapcar 'car selection-converter-alist)))
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416 (rest all))
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417 (while rest
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418 (cond ((memq (car rest) (cdr rest))
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419 (setcdr rest (delq (car rest) (cdr rest))))
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420 ((eq (car (cdr rest)) '_EMACS_INTERNAL) ; shh, it's a secret
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421 (setcdr rest (cdr (cdr rest))))
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422 (t
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423 (setq rest (cdr rest)))))
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424 (apply 'vector all)))
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425
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426 (defun select-convert-to-delete (selection type value)
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427 (disown-selection-internal selection)
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428 ;; A return value of nil means that we do not know how to do this conversion,
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429 ;; and replies with an "error". A return value of NULL means that we have
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430 ;; done the conversion (and any side-effects) but have no value to return.
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431 'NULL)
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432
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433 (defun select-convert-to-filename (selection type value)
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434 (cond ((extentp value)
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435 (buffer-file-name (or (extent-object value)
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436 (error "selection is in a killed buffer"))))
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437 ((and (consp value)
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438 (markerp (car value))
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439 (markerp (cdr value)))
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440 (buffer-file-name (or (marker-buffer (car value))
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441 (error "selection is in a killed buffer"))))
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442 (t nil)))
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443
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444 (defun select-convert-to-charpos (selection type value)
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445 (let (a b tmp)
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446 (cond ((cond ((extentp value)
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447 (setq a (extent-start-position value)
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448 b (extent-end-position value)))
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449 ((and (consp value)
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450 (markerp (car value))
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451 (markerp (cdr value)))
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452 (setq a (car value)
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453 b (cdr value))))
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454 (setq a (1- a) b (1- b)) ; zero-based
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455 (if (< b a) (setq tmp a a b b tmp))
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456 (cons 'SPAN
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457 (vector (cons (ash a -16) (logand a 65535))
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458 (cons (ash b -16) (logand b 65535))))))))
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459
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460 (defun select-convert-to-lineno (selection type value)
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461 (let (a b buf tmp)
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462 (cond ((cond ((extentp value)
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463 (setq buf (extent-object value)
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464 a (extent-start-position value)
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465 b (extent-end-position value)))
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466 ((and (consp value)
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467 (markerp (car value))
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468 (markerp (cdr value)))
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469 (setq a (marker-position (car value))
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470 b (marker-position (cdr value))
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471 buf (marker-buffer (car value)))))
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472 (save-excursion
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473 (set-buffer buf)
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|
474 (save-restriction
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475 (widen)
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476 (goto-char a)
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477 (beginning-of-line)
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478 (setq a (1+ (count-lines 1 (point))))
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479 (goto-char b)
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480 (beginning-of-line)
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481 (setq b (1+ (count-lines 1 (point))))))
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482 (if (< b a) (setq tmp a a b b tmp))
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483 (cons 'SPAN
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484 (vector (cons (ash a -16) (logand a 65535))
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485 (cons (ash b -16) (logand b 65535))))))))
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486
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|
487 (defun select-convert-to-colno (selection type value)
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488 (let (a b buf tmp)
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489 (cond ((cond ((extentp value)
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490 (setq buf (extent-object value)
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|
491 a (extent-start-position value)
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492 b (extent-end-position value)))
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493 ((and (consp value)
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494 (markerp (car value))
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495 (markerp (cdr value)))
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496 (setq a (car value)
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497 b (cdr value)
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498 buf (marker-buffer a))))
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|
499 (save-excursion
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500 (set-buffer buf)
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|
501 (goto-char a)
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502 (setq a (current-column))
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|
|
503 (goto-char b)
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|
|
504 (setq b (current-column)))
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|
|
505 (if (< b a) (setq tmp a a b b tmp))
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|
|
506 (cons 'SPAN
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|
|
507 (vector (cons (ash a -16) (logand a 65535))
|
|
|
508 (cons (ash b -16) (logand b 65535))))))))
|
|
|
509
|
|
|
510 (defun select-convert-to-sourceloc (selection type value)
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511 (let (a b buf file-name tmp)
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|
|
512 (cond ((cond ((extentp value)
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|
513 (setq buf (or (extent-object value)
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|
|
514 (error "selection is in a killed buffer"))
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|
|
515 a (extent-start-position value)
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|
|
516 b (extent-end-position value)
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|
|
517 file-name (buffer-file-name buf)))
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|
|
518 ((and (consp value)
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|
|
519 (markerp (car value))
|
|
|
520 (markerp (cdr value)))
|
|
|
521 (setq a (marker-position (car value))
|
|
|
522 b (marker-position (cdr value))
|
|
|
523 buf (or (marker-buffer (car value))
|
|
|
524 (error "selection is in a killed buffer"))
|
|
|
525 file-name (buffer-file-name buf))))
|
|
|
526 (save-excursion
|
|
|
527 (set-buffer buf)
|
|
|
528 (save-restriction
|
|
|
529 (widen)
|
|
|
530 (goto-char a)
|
|
|
531 (beginning-of-line)
|
|
|
532 (setq a (1+ (count-lines 1 (point))))
|
|
|
533 (goto-char b)
|
|
|
534 (beginning-of-line)
|
|
|
535 (setq b (1+ (count-lines 1 (point))))))
|
|
|
536 (if (< b a) (setq tmp a a b b tmp))
|
|
|
537 (format "%s:%d" file-name a)))))
|
|
|
538
|
|
|
539 (defun select-convert-to-os (selection type size)
|
|
|
540 (symbol-name system-type))
|
|
|
541
|
|
|
542 (defun select-convert-to-host (selection type size)
|
|
|
543 (system-name))
|
|
|
544
|
|
|
545 (defun select-convert-to-user (selection type size)
|
|
|
546 (user-full-name))
|
|
|
547
|
|
|
548 (defun select-convert-to-class (selection type size)
|
|
|
549 x-emacs-application-class)
|
|
|
550
|
|
|
551 ;; We do not try to determine the name Emacs was invoked with,
|
|
|
552 ;; because it is not clean for a program's behavior to depend on that.
|
|
|
553 (defun select-convert-to-name (selection type size)
|
|
|
554 ;invocation-name
|
|
|
555 "xemacs")
|
|
|
556
|
|
|
557 (defun select-convert-to-integer (selection type value)
|
|
|
558 (and (integerp value)
|
|
|
559 (cons (ash value -16) (logand value 65535))))
|
|
|
560
|
|
|
561 (defun select-convert-to-atom (selection type value)
|
|
|
562 (and (symbolp value) value))
|
|
|
563
|
|
|
564 (defun select-convert-to-identity (selection type value) ; used internally
|
|
|
565 (vector value))
|
|
|
566
|
|
|
567 (setq selection-converter-alist
|
|
|
568 '((TEXT . select-convert-to-text)
|
|
|
569 (STRING . select-convert-to-string)
|
|
|
570 (COMPOUND_TEXT . select-convert-to-compound-text)
|
|
|
571 (TARGETS . select-convert-to-targets)
|
|
|
572 (LENGTH . select-convert-to-length)
|
|
|
573 (DELETE . select-convert-to-delete)
|
|
|
574 (FILE_NAME . select-convert-to-filename)
|
|
|
575 (CHARACTER_POSITION . select-convert-to-charpos)
|
|
|
576 (SOURCE_LOC . select-convert-to-sourceloc)
|
|
|
577 (LINE_NUMBER . select-convert-to-lineno)
|
|
|
578 (COLUMN_NUMBER . select-convert-to-colno)
|
|
|
579 (OWNER_OS . select-convert-to-os)
|
|
|
580 (HOST_NAME . select-convert-to-host)
|
|
|
581 (USER . select-convert-to-user)
|
|
|
582 (CLASS . select-convert-to-class)
|
|
|
583 (NAME . select-convert-to-name)
|
|
|
584 (ATOM . select-convert-to-atom)
|
|
|
585 (INTEGER . select-convert-to-integer)
|
|
|
586 (_EMACS_INTERNAL . select-convert-to-identity)
|
|
|
587 ))
|
|
286
|
588
|
|
280
|
589 ;;; select.el ends here
|
