--- /dev/null
+;;; riece-url.el --- URL collector add-on
+;; 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., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Code:
+
+(defvar browse-url-browser-function)
+
+(defgroup riece-url nil
+ "URL Browsing in IRC buffer."
+ :group 'riece-vars)
+
+(defcustom riece-url-regexp "\\b\\(s?https?\\|ftp\\|file\\|gopher\\|news\\|telnet\\|wais\\|mailto\\):\\(//[-a-zA-Z0-9_.]+:[0-9]*\\)?[-a-zA-Z0-9_=?#$@~`%&*+|\\/.,]*[-a-zA-Z0-9_=#$@~`%&*+|\\/]"
+ "Regular expression that matches URLs."
+ :group 'riece-url
+ :type 'regexp)
+
+(defvar riece-urls nil
+ "A list of URL which appears in Riece buffers.")
+
+(autoload 'widget-convert-button "wid-edit")
+
+(defun riece-url-add-buttons (start end)
+ (save-excursion
+ (goto-char start)
+ (while (re-search-forward riece-url-regexp end t)
+ (let ((url (match-string 0)))
+ (widget-convert-button
+ 'url-link (match-beginning 0) (match-end 0) url)
+ (unless (member url riece-urls)
+ (setq riece-urls (cons url riece-urls)))))))
+
+(defun riece-command-browse-url (&optional url)
+ (interactive
+ (list (completing-read "Open URL:" (mapcar #'list riece-urls))))
+ (browse-url url))
+
+(defvar riece-dialogue-mode-map)
+
+(defun riece-url-requires ()
+ '(riece-highlight))
+
+(defun riece-url-insinuate ()
+ (add-hook 'riece-after-insert-functions 'riece-url-add-buttons)
+ (define-key riece-dialogue-mode-map "U" 'riece-command-browse-url))
+
+(provide 'riece-url)
+
+;;; riece-url.el ends here