cr-enc-handler.h

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00001 /* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
00002 
00003 /*
00004  * This file is part of The Croco Library
00005  *
00006  * Copyright (C) 2002-2003 Dodji Seketeli <dodji@seketeli.org>
00007  *
00008  * This program is free software; you can redistribute it and/or
00009  * modify it under the terms of version 2.1 of the GNU Lesser General Public
00010  * License as published by the Free Software Foundation.
00011  *
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Lesser General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00020  * USA
00021  */
00022 
00023 /*
00024  *$Id: cr-enc-handler.h,v 1.6 2005/05/10 19:48:56 dodji Exp $
00025  */
00026 
00027 /**
00028  *@file:
00029  *The declaration of the #CREncHandler class.
00030  *
00031  */
00032 
00033 #ifndef __CR_ENC_HANDLER_H__
00034 #define __CR_ENC_HANDLER_H__
00035 
00036 #include "cr-utils.h"
00037 
00038 G_BEGIN_DECLS
00039 
00040 
00041 typedef struct _CREncHandler CREncHandler ;
00042 
00043 typedef enum CRStatus (*CREncInputFunc) (const guchar * a_in,
00044                                          gulong *a_in_len,
00045                                          guchar *a_out,
00046                                          gulong *a_out_len) ;
00047 
00048 typedef enum CRStatus (*CREncOutputFunc) (const guchar * a_in,
00049                                           gulong *a_in_len,
00050                                           guchar *a_out,
00051                                           gulong *a_out_len) ;
00052 
00053 typedef enum CRStatus (*CREncInputStrLenAsUtf8Func) 
00054 (const guchar *a_in_start,
00055  const guchar *a_in_end,
00056  gulong *a_in_size);
00057 
00058 typedef enum CRStatus  (*CREncUtf8StrLenAsOutputFunc)
00059 (const guchar *a_in_start,
00060  const guchar *a_in_end,
00061  gulong *a_in_size) ;
00062 
00063 /**
00064  *This class is responsible of the
00065  *the encoding conversions stuffs in
00066  *libcroco.
00067  */
00068 
00069 struct _CREncHandler
00070 {
00071         enum CREncoding encoding ;
00072         CREncInputFunc decode_input ;                
00073         CREncInputFunc encode_output ;
00074         CREncInputStrLenAsUtf8Func enc_str_len_as_utf8 ;
00075         CREncUtf8StrLenAsOutputFunc utf8_str_len_as_enc ;
00076 } ;
00077 
00078 CREncHandler *
00079 cr_enc_handler_get_instance (enum CREncoding a_enc) ;
00080 
00081 enum CRStatus
00082 cr_enc_handler_resolve_enc_alias (const guchar *a_alias_name, 
00083                                   enum CREncoding *a_enc) ;
00084 
00085 enum CRStatus
00086 cr_enc_handler_convert_input (CREncHandler *a_this,
00087                               const guchar *a_in,
00088                               gulong *a_in_len,
00089                               guchar **a_out,
00090                               gulong *a_out_len) ;
00091 
00092 G_END_DECLS
00093 
00094 #endif /*__CR_ENC_HANDLER_H__*/

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