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1 ;; version.el --- Record version number of Emacs.
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2
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3 ;; Copyright (C) 1985, 1991-1994, 1997 Free Software Foundation, Inc.
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4
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5 ;; Maintainer: XEmacs Development Team
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6 ;; Keywords: internal, dumped
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7
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8 ;; This file is part of XEmacs.
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9
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10 ;; XEmacs is free software; you can redistribute it and/or modify
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11 ;; it under the terms of the GNU General Public License as published by
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12 ;; the Free Software Foundation; either version 2, or (at your option)
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13 ;; any later version.
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14
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15 ;; XEmacs is distributed in the hope that it will be useful,
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16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 ;; GNU General Public License for more details.
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19
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20 ;; You should have received a copy of the GNU General Public License
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21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
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22 ;; Free Software Foundation Inc., 59 Temple Place - Suite 330,
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23 ;; Boston, MA 02111-1307, USA.
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24
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25 ;;; Synched up with: FSF 19.34.
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26
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27 ;;; Commentary:
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28
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29 ;; This file is dumped with XEmacs.
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30
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31 ;;; Code:
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32
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33 (defconst xemacs-betaname
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34 (and emacs-beta-version (format "(beta%d)" emacs-beta-version))
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35 "Non-nil when this is a test (beta) version of XEmacs.
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36 Warning, this variable did not exist in XEmacs versions prior to 20.3")
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37
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38 (defconst emacs-version
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39 (purecopy
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40 (format "%d.%d %s%s%s%s"
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41 emacs-major-version
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42 emacs-minor-version
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43 (if emacs-patch-level
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44 (format "(patch %d)" emacs-patch-level)
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45 "")
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46 (if xemacs-betaname
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47 (concat " " xemacs-betaname)
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48 "")
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49 (if xemacs-codename
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50 (concat " \"" xemacs-codename "\"")
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51 "")
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52 " XEmacs Lucid"))
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53 "Version numbers of this version of XEmacs.")
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54
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55 (if (featurep 'infodock)
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56 (require 'id-vers))
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57
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58 ;; Moved to C code as of XEmacs 20.3
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59 ;(defconst emacs-major-version
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60 ; (progn (or (string-match "^[0-9]+" emacs-version)
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61 ; (error "emacs-version unparsable"))
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62 ; (string-to-int (match-string 0 emacs-version)))
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63 ; "Major version number of this version of Emacs, as an integer.
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64 ;Warning, this variable did not exist in Emacs versions earlier than:
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65 ; FSF Emacs: 19.23
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66 ; XEmacs: 19.10")
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67
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68 ;; Moved to C code as of XEmacs 20.3
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69 ;(defconst emacs-minor-version
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70 ; (progn (or (string-match "^[0-9]+\\.\\([0-9]+\\)" emacs-version)
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71 ; (error "emacs-version unparsable"))
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72 ; (string-to-int (match-string 1 emacs-version)))
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73 ; "Minor version number of this version of Emacs, as an integer.
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74 ;Warning, this variable did not exist in Emacs versions earlier than:
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75 ; FSF Emacs: 19.23
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76 ; XEmacs: 19.10")
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77
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78 (defconst emacs-build-time (current-time-string)
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79 "Time at which Emacs was dumped out.")
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80
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81 (defconst emacs-build-system (system-name))
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82
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83 (defun emacs-version (&optional arg)
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84 "Return string describing the version of Emacs that is running.
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85 When called interactively with a prefix argument, insert string at point.
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86 Don't use this function in programs to choose actions according
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87 to the system configuration; look at `system-configuration' instead."
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88 (interactive "p")
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89 (save-match-data
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90 (let ((version-string
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91 (format
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92 "XEmacs %s %s(%s%s) of %s %s on %s"
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93 (substring emacs-version 0 (string-match " XEmacs" emacs-version))
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94 (if (not (featurep 'infodock))
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95 "[Lucid] "
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96 "")
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97 system-configuration
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98 (cond ((or (and (fboundp 'featurep)
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99 (featurep 'mule))
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100 (memq 'mule features)) ", Mule")
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101 (t ""))
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102 (substring emacs-build-time 0
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103 (string-match " *[0-9]*:" emacs-build-time))
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104 (substring emacs-build-time
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105 (string-match "[0-9]*$" emacs-build-time))
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106 emacs-build-system)))
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107 (cond
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108 ((null arg) version-string)
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109 ((eq arg 1) (message "%s" version-string))
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110 (t (insert version-string))))))
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111
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112 ;; from emacs-vers.el
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113 (defun emacs-version>= (major &optional minor patch)
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114 "Return true if the Emacs version is >= to the given MAJOR, MINOR,
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115 and PATCH numbers.
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116 The MAJOR version number argument is required, but the other arguments
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117 argument are optional. Only the Non-nil arguments are used in the test."
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118 (let ((emacs-patch (or emacs-patch-level emacs-beta-version -1)))
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119 (cond ((> emacs-major-version major))
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120 ((< emacs-major-version major) nil)
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121 ((null minor))
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122 ((> emacs-minor-version minor))
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123 ((< emacs-minor-version minor) nil)
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124 ((null patch))
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125 ((>= emacs-patch patch)))))
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126
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127 ;;; We hope that this alias is easier for people to find.
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128 (define-function 'version 'emacs-version)
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129
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130 ;; Put the emacs version number into the `pure[]' array in a form that
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131 ;; `what(1)' can extract from the executable or a core file. We don't
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132 ;; actually need this to be pointed to from lisp; pure objects can't
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133 ;; be GCed.
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440
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134 (purecopy (concat "\n@" "(#)" (emacs-version)
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135 "\n@" "(#)" "Configuration: "
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136 system-configuration "\n"))
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428
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137
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138 ;;Local variables:
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139 ;;version-control: never
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140 ;;End:
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141
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142 ;;; version.el ends here
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