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;;; riece-mode.el --- functions for manipulating channel/user modes
;; 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:
(defun riece-parse-modes (string)
(let ((start 0)
result)
(while (and (string-match "[-+]\\([^-+ ]*\\) *" string start)
(= (match-beginning 0) start))
(let ((toggle (eq (aref string start) ?+))
(modes (string-to-list (match-string 1 string))))
(setq start (match-end 0))
(while modes
(if (and (string-match "\\([^-+][^ ]*\\) *" string start)
(= (match-beginning 0) start))
(setq start (match-end 0)
result (cons (list (riece-make-mode
(car modes) (match-string 1 string))
toggle)
result))
(setq result (cons (list (riece-make-mode (car modes))
toggle)
result)))
(setq modes (cdr modes)))))
(nreverse result)))
(defun riece-mode-assoc (flag modes)
"Return a mode object matched with FLAG in MODES."
(catch 'found
(while modes
(if (eq flag (riece-mode-flag (car modes)))
(throw 'found (car modes)))
(setq modes (cdr modes)))))
(defun riece-make-mode (flag &optional parameter)
"Make an instance of mode object.
Arguments are appropriate to the flag and the parameter."
(vector flag parameter))
(defun riece-mode-flag (mode)
"Return the flag of MODE."
(aref mode 0))
(defun riece-mode-parameter (mode)
"Return the parameter of MODE."
(aref mode 1))
(provide 'riece-mode)
;;; riece-mode.el ends here
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