gecko-dev/modules/libnls/headers/enconv.h

147 lines
4.0 KiB
C++

/* -*- Mode: C; tab-width: 4; 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):
*/
#ifndef ENCONV_H
#define ENCONV_H
#include "nlsxp.h"
typedef struct _NLS_AUTO_DETECT_RESULT
{
const char* fEncoding;
uint32 fFeatures;
uint32 fFlaws;
uint32 fErrors;
} NLS_AUTO_DETECT_RESULT;
#ifndef NLS_CPLUSPLUS
typedef struct _EncodingConverter EncodingConverter;
typedef struct _EncondingConverterList EncondingConverterList;
#else
typedef struct OpaqueCCCDataObject *CCCDataObject;
//
// Forward Delclartion of libnls private classes
//
class TEncodingRegistry;
class TEncodingConverter;
class TEncodingEntry;
#ifdef NLS_MAC
#pragma export on
#endif
class NLSCNVAPI_PUBLIC_CLASS EncodingConverter
{
public:
/*
* Constructor/destructor
*/
EncodingConverter(const char *from_charset, const char *to_charset);
~EncodingConverter();
size_t convert(const byte *inputBuffer, size_t inputBufferLength,
byte * outputBuffer, size_t outputBufferLength);
NLS_ErrorCode status();
void reset();
/* If output buffer was two small, remainder can be retrieved */
size_t remainderSize();
size_t nextBuffer(byte * buffer, size_t bufferSize);
/* If conversion was incomplete there will be bytes leftover*/
size_t leftoverSize();
size_t leftover(byte * outputBuffer, size_t outputBufferLength);
static nlsBool exists(const char *from_charset, const char *to_charset);
static const char* normalizedEncodingName(const char* encoding);
static const char* normalizedJavaName(const char* javaName);
static const char* javaEncodingName(const char* encoding);
static size_t resultBufferSize(const byte *buffer, size_t length,
const char *from_charset, const char *to_charset);
static void registerStaticLibrary(NLS_StaticConverterRegistry ImportStaticEntryList);
/* Data directory set & get */
static const char* getDataDirectory();
static void setDataDirectory(const char* path);
static NLS_ErrorCode initializeEncodingRegistry(void);
static TEncodingRegistry* getEncodingRegistry(void);
static void deleteEncodingRegistry(void);
private:
int16 intermidiateCSIDForUnicodeConversion(int16 csid);
size_t unicodeStringLength(UniChar *ustr);
NLS_ErrorCode fStatus;
const char* fFromCharset;
const char* fToCharset;
CCCDataObject fObj;
CCCDataObject fPreUniConvObj;
CCCDataObject fPostUniConvObj;
size_t fLeftOverSize;
size_t fLeftOverAllocatedSize;
byte* fLeftOverBuffer;
size_t fRemSize;
size_t fRemAllocatedSize;
byte* fRemBuffer;
TEncodingConverter *fEngine;
static char* fgConverterPath;
static const char* kDefaultConverterPath;
static TEncodingRegistry* fgRegistry;
};
class NLSCNVAPI_PUBLIC_CLASS EncondingConverterList
{
public:
/*
* Constructor/destructor
*/
EncondingConverterList(const char *from_charset, const char *to_charset);
~EncondingConverterList();
size_t count();
void index(size_t number, char *from_charset, char *to_charset);
private:
NLS_ErrorCode fStatus;
const char* fFromCharset;
const char* fToCharset;
size_t fCount;
const char** fFromArray;
const char** fToArray;
TEncodingRegistry* fRegistry;
};
#ifdef NLS_MAC
#pragma export off
#endif
#endif /* #ifndef NLS_CPLUSPLUS */
#endif /* #ifndef ENCONV_H */