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1 ;;; emu-xemacs.el --- emu API implementation for XEmacs
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2
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3 ;; Copyright (C) 1995 Free Software Foundation, Inc.
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4 ;; Copyright (C) 1995,1996,1997 MORIOKA Tomohiko
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5
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6 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
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7 ;; Version:
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8 ;; $Id: emu-xemacs.el,v 1.1 1997/06/03 04:18:35 steve Exp $
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9 ;; Keywords: emulation, compatibility, XEmacs
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10
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11 ;; This file is part of XEmacs.
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12
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13 ;; This program is free software; you can redistribute it and/or
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14 ;; modify it under the terms of the GNU General Public License as
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15 ;; published by the Free Software Foundation; either version 2, or (at
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16 ;; your option) any later version.
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17
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18 ;; This program is distributed in the hope that it will be useful, but
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19 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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21 ;; General Public License for more details.
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22
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23 ;; You should have received a copy of the GNU General Public License
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24 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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25 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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26 ;; 02111-1307, USA.
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27
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28 ;;; Code:
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29
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30 ;;; @ face
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31 ;;;
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32
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33 (or (fboundp 'face-list)
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34 (defalias 'face-list 'list-faces)
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35 )
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36
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37 (or (memq 'underline (face-list))
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38 (and (fboundp 'make-face)
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39 (make-face 'underline)
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40 ))
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41
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42 (or (face-differs-from-default-p 'underline)
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43 (set-face-underline-p 'underline t))
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44
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45
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46 ;;; @ overlay
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47 ;;;
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48
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49 (condition-case err
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50 (require 'overlay)
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51 (error (defalias 'make-overlay 'make-extent)
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52 (defalias 'overlay-put 'set-extent-property)
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53 (defalias 'overlay-buffer 'extent-buffer)
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54 (defun move-overlay (extent start end &optional buffer)
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55 (set-extent-endpoints extent start end)
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56 )
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57 ))
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58
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59
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60 ;;; @ visible/invisible
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61 ;;;
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62
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63 (defmacro enable-invisible ())
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64
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65 (defmacro end-of-invisible ())
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66
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67 (defun invisible-region (start end)
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68 (if (save-excursion
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69 (goto-char start)
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70 (eq (following-char) ?\n)
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71 )
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72 (setq start (1+ start))
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73 )
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74 (put-text-property start end 'invisible t)
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75 )
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76
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77 (defun visible-region (start end)
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78 (put-text-property start end 'invisible nil)
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79 )
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80
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81 (defun invisible-p (pos)
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82 (if (save-excursion
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83 (goto-char pos)
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84 (eq (following-char) ?\n)
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85 )
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86 (setq pos (1+ pos))
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87 )
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88 (get-text-property pos 'invisible)
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89 )
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90
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91 (defun next-visible-point (pos)
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92 (save-excursion
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93 (if (save-excursion
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94 (goto-char pos)
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95 (eq (following-char) ?\n)
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96 )
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97 (setq pos (1+ pos))
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98 )
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99 (or (next-single-property-change pos 'invisible)
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100 (point-max))
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101 ))
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102
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103
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104 ;;; @ mouse
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105 ;;;
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106
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107 (defvar mouse-button-1 'button1)
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108 (defvar mouse-button-2 'button2)
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109 (defvar mouse-button-3 'button3)
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110
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111
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112 ;;; @ dired
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113 ;;;
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114
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115 (or (fboundp 'dired-other-frame)
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116 (defun dired-other-frame (dirname &optional switches)
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117 "\"Edit\" directory DIRNAME. Like `dired' but makes a new frame."
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118 (interactive (dired-read-dir-and-switches "in other frame "))
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119 (switch-to-buffer-other-frame (dired-noselect dirname switches))
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120 )
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121 )
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122
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123
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124 ;;; @ string
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125 ;;;
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126
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127 (defmacro char-list-to-string (char-list)
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128 "Convert list of character CHAR-LIST to string. [emu-xemacs.el]"
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129 `(mapconcat #'char-to-string ,char-list ""))
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130
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131
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132 ;;; @@ to avoid bug of XEmacs 19.14
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133 ;;;
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134
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135 (or (string-match "^../"
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136 (file-relative-name "/usr/local/share" "/usr/local/lib"))
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137 ;; This function was imported from Emacs 19.33.
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138 (defun file-relative-name (filename &optional directory)
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139 "Convert FILENAME to be relative to DIRECTORY
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140 (default: default-directory). [emu-xemacs.el]"
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141 (setq filename (expand-file-name filename)
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142 directory (file-name-as-directory
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143 (expand-file-name
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144 (or directory default-directory))))
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145 (let ((ancestor ""))
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146 (while (not (string-match (concat "^" (regexp-quote directory))
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147 filename))
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148 (setq directory (file-name-directory (substring directory 0 -1))
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149 ancestor (concat "../" ancestor)))
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150 (concat ancestor (substring filename (match-end 0)))
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151 ))
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152 )
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153
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154
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155 ;;; @ end
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156 ;;;
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157
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158 (provide 'emu-xemacs)
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159
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160 ;;; emu-xemacs.el ends here
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