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+;;; url-nfs.el --- NFS URL interface
+;; Author: $Author: fx $
+;; Created: $Date: 2001/05/22 16:10:50 $
+;; Version: $Revision: 1.3 $
+;; Keywords: comm, data, processes
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;; Copyright (c) 1996 by William M. Perry <wmperry@cs.indiana.edu>
+;;; Copyright (c) 1996 - 1999 Free Software Foundation, Inc.
+;;;
+;;; 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., 59 Temple Place - Suite 330,
+;;; Boston, MA 02111-1307, USA.
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(eval-when-compile (require 'cl))
+(require 'url-parse)
+(require 'url-file)
+
+(defvar url-nfs-automounter-directory-spec
+  "file:/net/%h%f"
+  "*How to invoke the NFS automounter.  Certain % sequences are recognized.
+
+%h -- the hostname of the NFS server
+%n -- the port # of the NFS server
+%u -- the username to use to authenticate
+%p -- the password to use to authenticate
+%f -- the filename on the remote server
+%% -- a literal %
+
+Each can be used any number of times.")
+
+(defun url-nfs-unescape (format host port user pass file)
+  (save-excursion
+    (set-buffer (get-buffer-create " *nfs-parse*"))
+    (erase-buffer)
+    (insert format)
+    (goto-char (point-min))
+    (while (re-search-forward "%\\(.\\)" nil t)
+       (let ((escape (aref (match-string 1) 0)))
+	 (replace-match "" t t)
+	 (case escape
+	   (?% (insert "%"))
+	   (?h (insert host))
+	   (?n (insert (or port "")))
+	   (?u (insert (or user "")))
+	   (?p (insert (or pass "")))
+	   (?f (insert (or file "/"))))))
+    (buffer-string)))
+
+(defun url-nfs-build-filename (url)
+  (let* ((host (url-host url))
+	 (port (string-to-int (url-port url)))
+	 (pass (url-password url))
+	 (user (url-user url))
+	 (file (url-filename url)))
+    (url-generic-parse-url
+     (url-nfs-unescape url-nfs-automounter-directory-spec
+		       host port user pass file))))
+
+(defun url-nfs (url callback cbargs)
+  (url-file (url-nfs-build-filename url) callback cbargs))
+
+(defmacro url-nfs-create-wrapper (method args)
+  (` (defun (, (intern (format "url-nfs-%s" method))) (, args)
+       (, (format "NFS URL wrapper around `%s' call." method))
+       (setq url (url-nfs-build-filename url))
+       (and url ((, (intern (format "url-file-%s" method)))
+		 (,@ (remove '&rest (remove '&optional args))))))))
+
+(url-nfs-create-wrapper file-exists-p (url))
+(url-nfs-create-wrapper file-attributes (url))
+(url-nfs-create-wrapper file-symlink-p (url))
+(url-nfs-create-wrapper file-readable-p (url))
+(url-nfs-create-wrapper file-writable-p (url))
+(url-nfs-create-wrapper file-executable-p (url))
+(if (featurep 'xemacs)
+    (progn
+      (url-nfs-create-wrapper directory-files (url &optional full match nosort files-only))
+      (url-nfs-create-wrapper file-truename (url &optional default)))
+  (url-nfs-create-wrapper directory-files (url &optional full match nosort))
+  (url-nfs-create-wrapper file-truename (url &optional counter prev-dirs)))
+
+(provide 'url-nfs)