--- /dev/null
+;;; riece-version.el --- version information handling -*- lexical-binding: t -*-
+;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
+;; Free Software Foundation, Inc.
+;; Copyright (C) 1998-2003 Daiki Ueno
+
+;; Author: Daiki Ueno <ueno@unixuser.org>
+;; Created: 1998-09-28
+;; Keywords: IRC, riece
+
+;; This file is part of Riece.
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2, or (at your option)
+;; any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
+
+;;; Code:
+
+(require 'riece-package-info)
+
+;; NOTE: Most part of this file is copied from Gnus.
+
+(defcustom riece-user-agent 'emacs-riece-type
+ "Which information should be exposed in the User-Agent header.
+
+It can be one of the symbols `riece' \(show only Riece version\), `emacs-riece'
+\(show only Emacs and Riece versions\), `emacs-riece-config' \(same as
+`emacs-riece' plus system configuration\), `emacs-riece-type' \(same as
+`emacs-riece' plus system type\) or a custom string. If you set it to a
+string, be sure to use a valid format, see RFC 2616."
+ :group 'riece-options
+ :type '(choice
+ (item :tag "Show Riece and Emacs versions and system type"
+ emacs-riece-type)
+ (item :tag "Show Riece and Emacs versions and system configuration"
+ emacs-riece-config)
+ (item :tag "Show Riece and Emacs versions" emacs-riece)
+ (item :tag "Show only Riece version" riece)
+ (string :tag "Other")))
+
+(defconst riece-version (format "%s v%s" riece-package-name
+ riece-version-number)
+ "Version string for this version of Riece.")
+
+(eval-when-compile
+ (defvar emacs-program-version)
+ (defvar xemacs-codename)
+ (defvar sxemacs-codename))
+
+(defun riece-extended-version ()
+ "Stringified Riece version and Emacs version.
+See the variable `riece-user-agent'."
+ (let* ((riece-v
+ (concat riece-package-name "/"
+ (prin1-to-string riece-version-number t)))
+ (system-v
+ (cond
+ ((eq riece-user-agent 'emacs-riece-config)
+ system-configuration)
+ ((eq riece-user-agent 'emacs-riece-type)
+ (symbol-name system-type))
+ (t nil)))
+ (emacs-v
+ (cond
+ ((eq riece-user-agent 'riece)
+ nil)
+ ((string-match "^\\(\\([.0-9]+\\)*\\)\\.[0-9]+$" emacs-version)
+ (concat "Emacs/" (match-string 1 emacs-version)
+ (if system-v
+ (concat " (" system-v ")")
+ "")))
+ ((featurep 'sxemacs)
+ (concat "SXEmacs/" emacs-program-version
+ (when system-v
+ (concat " ("
+ (when sxemacs-codename
+ (concat sxemacs-codename ", "))
+ system-v ")"))))
+ ((featurep 'xemacs)
+ (concat "XEmacs/" emacs-program-version
+ (when system-v
+ (concat " ("
+ (when xemacs-codename
+ (concat xemacs-codename ", "))
+ system-v ")"))))
+ (t emacs-version))))
+ (if (stringp riece-user-agent)
+ riece-user-agent
+ (concat riece-v
+ (when emacs-v
+ (concat " " emacs-v))))))
+
+(defun riece-version (&optional arg)
+ "Version number of this version of Riece.
+If ARG, use user-agent format."
+ (interactive "P")
+ (if arg
+ (message "%s" (riece-extended-version))
+ (message "%s" riece-version)))
+
+(provide 'riece-version)
+
+;;; riece-version.el ends here
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