/* -*- 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 mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Sean Su <ssu@netscape.com>
 *   Revision checked in on 01/03/22 by ssu@netscape.com, derived from:
 *   mozilla/xpcom/io/nsEscape.h
 *   mozilla/xpcom/io/nsEscape.cpp
 *
 * 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 _ESCAPE_H_
#define _ESCAPE_H_

#define NS_COM
#define PRUnichar char

/* valid mask values for NET_Escape() and NET_EscapedSize(). */
typedef enum {
	url_XAlphas		= (1<<0)
,	url_XPAlphas	= (1<<1)
,	url_Path		= (1<<2)
} nsEscapeMask;

#ifdef __cplusplus
extern "C" {
#endif
NS_COM char * nsEscape(const char * str, nsEscapeMask mask);
	/* Caller must use nsCRT::free() on the result */

NS_COM char * nsUnescape(char * str);
	/* decode % escaped hex codes into character values,
	 * modifies the parameter, returns the same buffer
	 */

NS_COM char * nsEscapeCount(const char * str, PRInt32 len, nsEscapeMask mask, PRInt32* out_len);
	/* Like nsEscape, but if out_len is non-null, return result string length
	 * in *out_len, and uses len instead of NUL termination.
	 * Caller must use nsCRT::free() on the result.
	 */
NS_COM PRInt32 nsUnescapeCount (char * str);
	/* decode % escaped hex codes into character values,
	 * modifies the parameter buffer, returns the length of the result
	 * (result may contain \0's).
	 */

#ifdef __cplusplus
}
#endif

#endif //  _ESCAPE_H_