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| | ;;; filewatch.el --- Elisp support for watching filesystem events.
;; Copyright (C) 2011 Free Software Foundation, Inc.
;; Author: Rüdiger Sonderfeld <ruediger@c-plusplus.de>
;; Keywords: files
;; 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 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; This file contains the elisp part of the filewatch API.
;;; Code:
(eval-when-compile
(require 'cl))
(defun filewatch-event-p (event)
"Check if EVENT is a filewatch event."
(and (listp event)
(eq (car event) 'filewatch-event)))
;;;###autoload
(defun filewatch-handle-event (event)
"Handle file system monitoring event.
If EVENT is a filewatch event then the callback is called. If EVENT is
not a filewatch event then a `filewatch-error' is signaled."
(interactive "e")
(unless (filewatch-event-p event)
(signal 'filewatch-error (cons "Not a valid filewatch event" event)))
(loop for ev in (cdr event)
unless (and (listp ev) (>= (length ev) 3))
do (signal 'filewatch-error (cons "Not a valid filewatch event" event))
do (funcall (cadr ev) (car ev) (caddr ev))))
(provide 'filewatch)
;;; filewatch.el ends here
|