117 lines
3.8 KiB
C++
117 lines
3.8 KiB
C++
/*
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* @(#)CharEncoder.hxx 1.0 6/10/97
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*
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* Copyright (c) 1997 - 1999 Microsoft Corporation. All rights reserved. *
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*/
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#ifndef _FUSION_XMLPARSER__CHARENCODER_HXX
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#define _FUSION_XMLPARSER__CHARENCODER_HXX
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#pragma once
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#include "codepage.h"
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#ifdef FUSION_USE_OLD_XML_PARSER_SOURCE
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#include "mlang.h"
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#endif
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typedef HRESULT WideCharFromMultiByteFunc(DWORD* pdwMode, CODEPAGE codepage, BYTE * bytebuffer,
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UINT * cb, WCHAR * buffer, UINT * cch);
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#ifdef FUSION_USE_OLD_XML_PARSER_SOURCE
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typedef HRESULT WideCharToMultiByteFunc(DWORD* pdwMode, CODEPAGE codepage, WCHAR * buffer,
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UINT *cch, BYTE * bytebuffer, UINT * cb);
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#endif
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struct EncodingEntry
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{
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UINT codepage;
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WCHAR * charset;
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UINT maxCharSize;
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WideCharFromMultiByteFunc * pfnWideCharFromMultiByte;
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#ifdef FUSION_USE_OLD_XML_PARSER_SOURCE
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WideCharToMultiByteFunc * pfnWideCharToMultiByte;
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#endif
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};
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class Encoding
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{
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protected:
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Encoding() {};
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public:
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// default encoding is UTF-8.
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static Encoding* newEncoding(const WCHAR * s = L"UTF-8", ULONG len = 5, bool endian = false, bool mark = false);
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virtual ~Encoding();
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WCHAR * charset; // charset
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bool littleendian; // endian flag for UCS-2/UTF-16 encoding, true: little endian, false: big endian
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bool byteOrderMark; // byte order mark (BOM) flag, BOM appears when true
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};
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/**
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*
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* An Encoder specifically for dealing with different encoding formats
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* @version 1.0, 6/10/97
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*/
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class NOVTABLE CharEncoder
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{
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//
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// class CharEncoder is a utility class, makes sure no instance can be defined
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//
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private: virtual charEncoder() = 0;
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public:
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static HRESULT getWideCharFromMultiByteInfo(Encoding * encoding, CODEPAGE * pcodepage, WideCharFromMultiByteFunc ** pfnWideCharFromMultiByte, UINT * mCharSize);
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#ifdef FUSION_USE_OLD_XML_PARSER_SOURCE
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static HRESULT getWideCharToMultiByteInfo(Encoding * encoding, CODEPAGE * pcodepage, WideCharToMultiByteFunc ** pfnWideCharToMultiByte, UINT * mCharSize);
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#endif
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/**
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* Encoding functions: get Unicode from other encodings
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*/
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#ifdef FUSION_USE_OLD_XML_PARSER_SOURCE
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static WideCharFromMultiByteFunc wideCharFromUcs4Bigendian;
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static WideCharFromMultiByteFunc wideCharFromUcs4Littleendian;
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static WideCharFromMultiByteFunc wideCharFromUtf7;
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static WideCharFromMultiByteFunc wideCharFromAnsiLatin1;
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static WideCharFromMultiByteFunc wideCharFromMultiByteWin32;
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static WideCharFromMultiByteFunc wideCharFromMultiByteMlang;
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#endif
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// actually, we only use these three functions for UCS-2 and UTF-8
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static WideCharFromMultiByteFunc wideCharFromUtf8;
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static WideCharFromMultiByteFunc wideCharFromUcs2Bigendian;
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static WideCharFromMultiByteFunc wideCharFromUcs2Littleendian;
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/**
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* Encoding functions: from Unicode to other encodings
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*/
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#ifdef FUSION_USE_OLD_XML_PARSER_SOURCE
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static WideCharToMultiByteFunc wideCharToUcs2Bigendian;
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static WideCharToMultiByteFunc wideCharToUcs2Littleendian;
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static WideCharToMultiByteFunc wideCharToUcs4Bigendian;
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static WideCharToMultiByteFunc wideCharToUcs4Littleendian;
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static WideCharToMultiByteFunc wideCharToUtf8;
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static WideCharToMultiByteFunc wideCharToUtf7;
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static WideCharToMultiByteFunc wideCharToAnsiLatin1;
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static WideCharToMultiByteFunc wideCharToMultiByteWin32;
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static WideCharToMultiByteFunc wideCharToMultiByteMlang;
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#endif
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static int getCharsetInfo(const WCHAR * charset, CODEPAGE * pcodepage, UINT * mCharSize);
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private:
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#ifdef FUSION_USE_OLD_XML_PARSER_SOURCE
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static HRESULT _EnsureMultiLanguage();
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#endif
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private:
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#ifdef FUSION_USE_OLD_XML_PARSER_SOURCE
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static IMultiLanguage * pMultiLanguage;
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#endif
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static const EncodingEntry charsetInfo [];
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};
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#endif _FUSION_XMLPARSER__CHARENCODER_HXX
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