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cr-enc-handler.h

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/* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 8 -*- */

/*
 * This file is part of The Croco Library
 *
 * Copyright (C) 2002-2003 Dodji Seketeli <dodji@seketeli.org>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2.1 of the GNU Lesser General Public
 * License as published by the Free Software Foundation.
 *
 * This program 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 Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 */

/*
 *$Id: cr-enc-handler.h,v 1.5 2004/01/24 19:24:01 dodji Exp $
 */

/**
 *@file:
 *The declaration of the #CREncHandler class.
 *
 */

#ifndef __CR_ENC_HANDLER_H__
#define __CR_ENC_HANDLER_H__

#include "cr-utils.h"

G_BEGIN_DECLS


typedef struct _CREncHandler CREncHandler ;

typedef enum CRStatus (*CREncInputFunc) (const guchar * a_in,
                                         gulong *a_in_len,
                                         guchar *a_out,
                                         gulong *a_out_len) ;

typedef enum CRStatus (*CREncOutputFunc) (const guchar * a_in,
                                          gulong *a_in_len,
                                          guchar *a_out,
                                          gulong *a_out_len) ;

typedef enum CRStatus (*CREncInputStrLenAsUtf8Func) 
(const guchar *a_in_start,
 const guchar *a_in_end,
 gulong *a_in_size);

typedef enum CRStatus  (*CREncUtf8StrLenAsOutputFunc)
(const guchar *a_in_start,
 const guchar *a_in_end,
 gulong *a_in_size) ;

/**
 *This class is responsible of the
 *the encoding conversions stuffs in
 *libcroco.
 */

00069 struct _CREncHandler
{
        enum CREncoding encoding ;
        CREncInputFunc decode_input ;                
        CREncInputFunc encode_output ;
        CREncInputStrLenAsUtf8Func enc_str_len_as_utf8 ;
        CREncUtf8StrLenAsOutputFunc utf8_str_len_as_enc ;
} ;

CREncHandler *
cr_enc_handler_get_instance (enum CREncoding a_enc) ;

enum CRStatus
cr_enc_handler_resolve_enc_alias (const guchar *a_en_alias, 
                                  enum CREncoding *a_enc) ;
void
cr_enc_handler_destroy (CREncHandler * a_enc_hdlr) ;

enum CRStatus
cr_enc_handler_convert_input (CREncHandler *a_this,
                              const guchar *a_in,
                              gulong *a_in_len,
                              guchar **a_out,
                              gulong *a_out_len) ;

G_END_DECLS

#endif /*__CR_ENC_HANDLER_H__*/

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