/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * The contents of this file are subject to the Netscape 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/NPL/
 *
 * 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 Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation. 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
 *   First checked in on 98/12/03 by John R. McMullen, derived from
 *   net.h/mkparse.c.
 */

#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_

