/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is the Platform for Privacy Preferences.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2002
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s): Harish Dhurvasula <harishd@netscape.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef NS_P3PUTILS_H__
#define NS_P3PUTILS_H__

#include "nsString.h"
#include "nsCRT.h"
#include "nsVoidArray.h"
#include "nsCOMPtr.h"                                                           


class nsIDOMNode;

class nsP3PUtils {
  public:
    static nsresult GetAttributeValue(nsIDOMNode* aNode, char* aAttrName, nsAString& aAttrValue);
    static nsresult DeterminePolicyScope(const nsVoidArray& aNodeList, const char* aPath, PRBool* aOut);
    static nsresult GetElementsByTagName(nsIDOMNode* aNode, const nsAString& aTagName, nsVoidArray& aReturn);
    static PRBool   IsPathIncluded(const nsAString& aURI, const nsAString& aPath);
    static PRBool   ParseWildCard(nsAString& aLhs,  nsAString& aRhs);
    static const    nsDependentSubstring TrimCharsInSet(const char* aSet, const nsAString& aValue);
    static void     CleanArray(nsVoidArray& aArray);
  private:
    //  Use the |static| methods |only|
    nsP3PUtils()  {}
    ~nsP3PUtils() {}
};

#endif