1 ;;; riece-eval.el --- eval add-on
2 ;; Copyright (C) 2005 OHASHI Akira
4 ;; Author: OHASHI Akira <bg66@koka-in.org>
5 ;; Keywords: IRC, riece
7 ;; This file is part of Riece.
9 ;; This program is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; This program is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 ;; Boston, MA 02111-1307, USA.
26 ;; This add-on evaluates an input string as lisp object and sends a result
27 ;; as notice. Note the risky of this add-on.
29 ;; To use, add the following line to your ~/.riece/init.el:
30 ;; (add-to-list 'riece-addons 'riece-eval)
35 (require 'riece-message)
37 (defgroup riece-eval nil
38 "Evaluate an input string as lisp object."
42 (defcustom riece-eval-regexp "^, \\(.+\\)"
43 "*Pattern of string evaluating."
47 (defcustom riece-eval-ignore-error nil
48 "*If non-nil, an error is ignored."
52 (defvar riece-eval-enabled nil)
54 (defconst riece-eval-description
55 "Evaluate an input string as lisp object.")
57 (defun riece-eval-display-message-function (message)
58 (when (and riece-eval-enabled
59 (riece-message-own-p message)
60 (string-match riece-eval-regexp (riece-message-text message)))
61 (let* ((form (match-string 1 (riece-message-text message)))
62 (string (riece-eval-form form)))
63 (unless (equal string "")
65 (format "NOTICE %s :%s\r\n"
66 (riece-identity-prefix (riece-message-target message))
68 (riece-display-message
69 (riece-make-message (riece-current-nickname)
70 (riece-message-target message)
73 (defun riece-eval-form (form)
75 (let ((object (eval (read form))))
77 ((stringp object) object)
79 (not (eq object nil)))
80 (let ((string (pp-to-string object)))
81 (substring string 0 (1- (length string)))))
83 (number-to-string object))
85 (t (pp-to-string object))))
87 (unless riece-eval-ignore-error
88 (format "Error evaluating %s: %s" form err)))))
90 (defun riece-eval-insinuate ()
91 (add-hook 'riece-after-display-message-functions
92 'riece-eval-display-message-function))
94 (defun riece-eval-enable ()
95 (setq riece-eval-enabled t))
97 (defun riece-eval-disable ()
98 (setq riece-eval-enabled nil))
100 (provide 'riece-eval)
102 ;;; riece-eval.el ends here