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emacs/lisp/erc/erc-replace.el
2007-01-21 02:48:43 +00:00

93 lines
2.9 KiB
EmacsLisp

;; erc-replace.el -- wash and massage messages inserted into the buffer
;; Copyright (C) 2001, 2002, 2004, 2006, 2007 Free Software Foundation, Inc.
;; Author: Andreas Fuchs <asf@void.at>
;; Maintainer: Mario Lang (mlang@delysid.org)
;; Keywords: IRC, client, Internet
;; This file is part of GNU Emacs.
;; GNU Emacs 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.
;; GNU Emacs 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:
;; This module allows you to systematically replace text in incoming
;; messages. Load erc-replace, and customize `erc-replace-alist'.
;; Then add to your ~/.emacs:
;; (require 'erc-replace)
;; (erc-replace-mode 1)
;;; Code:
(require 'erc)
(defgroup erc-replace nil
"Replace text from incoming messages"
:group 'erc)
(defcustom erc-replace-alist nil
"Alist describing text to be replaced in incoming messages.
This is useful for filters.
The alist has elements of the form (FROM . TO). FROM can be a regular
expression or a variable, or any sexp, TO can be a string or a
function to call, or any sexp. If a function, it will be called with
one argument, the string to be replaced, and it should return a
replacement string."
:group 'erc-replace
:type '(repeat (cons :tag "Search & Replace"
(choice :tag "From"
regexp
variable
sexp)
(choice :tag "To"
string
function
sexp))))
(defun erc-replace-insert ()
"Function to run from `erc-insert-modify-hook'.
It replaces text according to `erc-replace-alist'."
(mapcar (lambda (elt)
(goto-char (point-min))
(let ((from (car elt))
(to (cdr elt)))
(unless (stringp from)
(setq from (eval from)))
(while (re-search-forward from nil t)
(cond ((stringp to)
(replace-match to))
((and (symbolp to) (fboundp to))
(replace-match (funcall to (match-string 0))))
(t
(eval to))))))
erc-replace-alist))
;;;###autoload (autoload 'erc-replace-mode "erc-replace")
(define-erc-module replace nil
"This mode replaces incoming text according to `erc-replace-alist'."
((add-hook 'erc-insert-modify-hook
'erc-replace-insert))
((remove-hook 'erc-insert-modify-hook
'erc-replace-insert)))
(provide 'erc-replace)
;; arch-tag: dd904a59-d8a6-47f8-ac3a-76b698289a18
;;; erc-replace.el ends here