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comparison lisp/version.el @ 428:3ecd8885ac67 r21-2-22

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Import from CVS: tag r21-2-22
author cvs
date Mon, 13 Aug 2007 11:28:15 +0200
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children 8de8e3f6228a
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427:0a0253eac470 428:3ecd8885ac67
1 ;; version.el --- Record version number of Emacs.
2
3 ;; Copyright (C) 1985, 1991-1994, 1997 Free Software Foundation, Inc.
4
5 ;; Maintainer: XEmacs Development Team
6 ;; Keywords: internal, dumped
7
8 ;; This file is part of XEmacs.
9
10 ;; XEmacs is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
13 ;; any later version.
14
15 ;; XEmacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
19
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
24
25 ;;; Synched up with: FSF 19.34.
26
27 ;;; Commentary:
28
29 ;; This file is dumped with XEmacs.
30
31 ;;; Code:
32
33 (defconst xemacs-betaname
34 (and emacs-beta-version (format "(beta%d)" emacs-beta-version))
35 "Non-nil when this is a test (beta) version of XEmacs.
36 Warning, this variable did not exist in XEmacs versions prior to 20.3")
37
38 (defconst emacs-version
39 (purecopy
40 (format "%d.%d %s%s%s%s"
41 emacs-major-version
42 emacs-minor-version
43 (if emacs-patch-level
44 (format "(patch %d)" emacs-patch-level)
45 "")
46 (if xemacs-betaname
47 (concat " " xemacs-betaname)
48 "")
49 (if xemacs-codename
50 (concat " \"" xemacs-codename "\"")
51 "")
52 " XEmacs Lucid"))
53 "Version numbers of this version of XEmacs.")
54
55 (if (featurep 'infodock)
56 (require 'id-vers))
57
58 ;; Moved to C code as of XEmacs 20.3
59 ;(defconst emacs-major-version
60 ; (progn (or (string-match "^[0-9]+" emacs-version)
61 ; (error "emacs-version unparsable"))
62 ; (string-to-int (match-string 0 emacs-version)))
63 ; "Major version number of this version of Emacs, as an integer.
64 ;Warning, this variable did not exist in Emacs versions earlier than:
65 ; FSF Emacs: 19.23
66 ; XEmacs: 19.10")
67
68 ;; Moved to C code as of XEmacs 20.3
69 ;(defconst emacs-minor-version
70 ; (progn (or (string-match "^[0-9]+\\.\\([0-9]+\\)" emacs-version)
71 ; (error "emacs-version unparsable"))
72 ; (string-to-int (match-string 1 emacs-version)))
73 ; "Minor version number of this version of Emacs, as an integer.
74 ;Warning, this variable did not exist in Emacs versions earlier than:
75 ; FSF Emacs: 19.23
76 ; XEmacs: 19.10")
77
78 (defconst emacs-build-time (current-time-string)
79 "Time at which Emacs was dumped out.")
80
81 (defconst emacs-build-system (system-name))
82
83 (defun emacs-version (&optional arg)
84 "Return string describing the version of Emacs that is running.
85 When called interactively with a prefix argument, insert string at point.
86 Don't use this function in programs to choose actions according
87 to the system configuration; look at `system-configuration' instead."
88 (interactive "p")
89 (save-match-data
90 (let ((version-string
91 (format
92 "XEmacs %s %s(%s%s) of %s %s on %s"
93 (substring emacs-version 0 (string-match " XEmacs" emacs-version))
94 (if (not (featurep 'infodock))
95 "[Lucid] "
96 "")
97 system-configuration
98 (cond ((or (and (fboundp 'featurep)
99 (featurep 'mule))
100 (memq 'mule features)) ", Mule")
101 (t ""))
102 (substring emacs-build-time 0
103 (string-match " *[0-9]*:" emacs-build-time))
104 (substring emacs-build-time
105 (string-match "[0-9]*$" emacs-build-time))
106 emacs-build-system)))
107 (cond
108 ((null arg) version-string)
109 ((eq arg 1) (message "%s" version-string))
110 (t (insert version-string))))))
111
112 ;; from emacs-vers.el
113 (defun emacs-version>= (major &optional minor patch)
114 "Return true if the Emacs version is >= to the given MAJOR, MINOR,
115 and PATCH numbers.
116 The MAJOR version number argument is required, but the other arguments
117 argument are optional. Only the Non-nil arguments are used in the test."
118 (let ((emacs-patch (or emacs-patch-level emacs-beta-version -1)))
119 (cond ((> emacs-major-version major))
120 ((< emacs-major-version major) nil)
121 ((null minor))
122 ((> emacs-minor-version minor))
123 ((< emacs-minor-version minor) nil)
124 ((null patch))
125 ((>= emacs-patch patch)))))
126
127 ;;; We hope that this alias is easier for people to find.
128 (define-function 'version 'emacs-version)
129
130 ;; Put the emacs version number into the `pure[]' array in a form that
131 ;; `what(1)' can extract from the executable or a core file. We don't
132 ;; actually need this to be pointed to from lisp; pure objects can't
133 ;; be GCed.
134 (or (memq system-type '(windows-nt ms-dos))
135 (purecopy (concat "\n@" "(#)" (emacs-version)
136 "\n@" "(#)" "Configuration: "
137 system-configuration "\n")))
138
139 ;;Local variables:
140 ;;version-control: never
141 ;;End:
142
143 ;;; version.el ends here