--- /dev/null
+;;; riece-keyword.el --- detect keywords in IRC buffers -*- lexical-binding: t -*-
+;; 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.
+
+;;; Commentary:
+
+;; NOTE: This is an add-on module for Riece.
+
+;;; Code:
+
+(require 'riece-message)
+
+(defgroup riece-keyword nil
+ "Detect keywords in IRC buffers."
+ :prefix "riece-"
+ :group 'riece)
+
+(defcustom riece-keywords nil
+ "Keywords to be highlightened."
+ :type '(repeat (choice (string :tag "Keyword")
+ (cons (string :tag "Regexp")
+ (integer :tag "Match"))))
+ :group 'riece-keyword)
+
+(defcustom riece-notify-keyword-functions nil
+ "Functions used to notify keyword match."
+ :type '(repeat function)
+ :group 'riece-keyword)
+
+(make-obsolete-variable 'riece-notify-keyword-functions
+ 'riece-keyword-notify-functions
+ "2003-12-22")
+
+(defcustom riece-keyword-notify-functions nil
+ "Functions used to notify keyword match.
+Two arguments are passed to each function: the keyword used to match
+and the matched message object."
+ :type '(repeat function)
+ :group 'riece-keyword)
+
+(defface riece-keyword-face
+ '((((class color))
+ (:foreground "red" :underline t))
+ (t
+ (:underline t)))
+ "Face used for highlightening matching keyword."
+ :group 'riece-highlight-faces)
+(defvar riece-keyword-face 'riece-keyword-face)
+
+(defconst riece-keyword-description
+ "Detect keywords in IRC buffers.")
+
+;;; The old XEmacs package doesn't have autoload setting for regexp-opt.
+(autoload 'regexp-opt "regexp-opt")
+(defun riece-keyword-message-filter (message)
+ (if (and (get 'riece-keyword 'riece-addon-enabled)
+ riece-keywords
+ ;; Ignore messages which belongs to myself.
+ (not (riece-message-own-p message)))
+ (let* (keywords
+ (alist
+ (nconc
+ (delq nil (mapcar
+ (lambda (matcher)
+ (if (stringp matcher)
+ (ignore
+ (setq keywords (cons matcher keywords)))
+ matcher))
+ riece-keywords))
+ (if keywords
+ (list (cons (regexp-opt keywords) 0)))))
+ index)
+ (while alist
+ (setq index 0)
+ (while (and (< index (length (riece-message-text message)))
+ (string-match (car (car alist))
+ (riece-message-text message) index))
+ (put-text-property (match-beginning (cdr (car alist)))
+ (match-end (cdr (car alist)))
+ 'riece-overlay-face riece-keyword-face
+ (riece-message-text message))
+ (save-match-data
+ (run-hook-with-args 'riece-notify-keyword-functions
+ (match-string (cdr (car alist))
+ (riece-message-text message)))
+ (run-hook-with-args 'riece-keyword-notify-functions
+ (cdr (car alist))
+ message))
+ (setq index (1+ (match-end (cdr (car alist))))))
+ (setq alist (cdr alist)))))
+ message)
+
+(defun riece-keyword-requires ()
+ (if (memq 'riece-highlight riece-addons)
+ '(riece-highlight)))
+
+(defun riece-keyword-insinuate ()
+ (add-hook 'riece-message-filter-functions 'riece-keyword-message-filter))
+
+(defun riece-keyword-uninstall ()
+ (remove-hook 'riece-message-filter-functions 'riece-keyword-message-filter))
+
+(provide 'riece-keyword)
+
+;;; riece-keyword.el ends here
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