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Diffstat (limited to 'sal/textenc/tenchelp.hxx')
| -rw-r--r-- | sal/textenc/tenchelp.hxx | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/sal/textenc/tenchelp.hxx b/sal/textenc/tenchelp.hxx new file mode 100644 index 000000000..469ffabb7 --- /dev/null +++ b/sal/textenc/tenchelp.hxx @@ -0,0 +1,250 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 . + */ + +#ifndef INCLUDED_SAL_TEXTENC_TENCHELP_HXX +#define INCLUDED_SAL_TEXTENC_TENCHELP_HXX + +#include <sal/config.h> + +#include <rtl/tencinfo.h> +#include <rtl/textcvt.h> +#include <rtl/textenc.h> +#include <sal/types.h> + +#include "unichars.hxx" + +#define RTL_TEXTCVT_BYTE_PRIVATE_START 0xF100 +#define RTL_TEXTCVT_BYTE_PRIVATE_END 0xF1FF + +/* ----------------- */ +/* - TextConverter - */ +/* ----------------- */ + +typedef +sal_Size (* ImplConvertToUnicodeProc)(void const * pData, + void * pContext, + char const * pSrcBuf, + sal_Size nSrcBytes, + sal_Unicode * pDestBuf, + sal_Size nDestChars, + sal_uInt32 nFlags, + sal_uInt32 * pInfo, + sal_Size * pSrcCvtBytes); + +typedef +sal_Size (* ImplConvertToTextProc)(void const * pData, + void * pContext, + sal_Unicode const * pSrcBuf, + sal_Size nSrcChars, + char * pDestBuf, + sal_Size nDestBytes, + sal_uInt32 nFlags, + sal_uInt32 * pInfo, + sal_Size * pSrcCvtChars); + +typedef void * (* ImplCreateTextContextProc)(); + +typedef void (* ImplDestroyTextContextProc)(void * pContext); + +typedef void (* ImplResetTextContextProc)(void * pContext); + +typedef void * (* ImplCreateUnicodeContextProc)(); + +typedef void (* ImplDestroyUnicodeContextProc)(void * pContext); + +typedef void (* ImplResetUnicodeContextProc)(void * pContext); + +struct ImplTextConverter +{ + void const * mpConvertData; + ImplConvertToUnicodeProc mpConvertTextToUnicodeProc; + ImplConvertToTextProc mpConvertUnicodeToTextProc; + ImplCreateTextContextProc mpCreateTextToUnicodeContext; + ImplDestroyTextContextProc mpDestroyTextToUnicodeContext; + ImplResetTextContextProc mpResetTextToUnicodeContext; + ImplCreateUnicodeContextProc mpCreateUnicodeToTextContext; + ImplDestroyUnicodeContextProc mpDestroyUnicodeToTextContext; + ImplResetUnicodeContextProc mpResetUnicodeToTextContext; +}; + +/* ----------------------------- */ +/* - TextEncoding - Structures - */ +/* ----------------------------- */ + +struct SAL_DLLPUBLIC_RTTI ImplTextEncodingData +{ + ImplTextConverter maConverter; + char const * mpBestUnixCharset; + char const * mpBestMimeCharset; + sal_uInt8 mnMinCharSize; + sal_uInt8 mnMaxCharSize; + sal_uInt8 mnAveCharSize; + sal_uInt8 mnBestWindowsCharset; + sal_uInt32 mnInfoFlags; +}; + +/* ----------------------------------- */ +/* - TextConverter - Byte-Structures - */ +/* ----------------------------------- */ + +struct ImplUniCharTabData +{ + sal_uInt16 mnUniChar; + unsigned char mnChar; + unsigned char mnChar2; + // to cater for mappings like MS1258 with 1--2 bytes per Unicode char, + // 0 if unused +}; + +struct ImplByteConvertData +{ + const sal_uInt16* mpToUniTab1; + const sal_uInt16* mpToUniTab2; + const unsigned char* mpToCharTab1; + const unsigned char* mpToCharTab2; + const ImplUniCharTabData* mpToCharExTab; + unsigned char mnToUniStart1; + unsigned char mnToUniEnd1; + unsigned char mnToUniStart2; + unsigned char mnToUniEnd2; + sal_uInt16 mnToCharStart1; + sal_uInt16 mnToCharEnd1; + sal_uInt16 mnToCharStart2; + sal_uInt16 mnToCharEnd2; + sal_uInt16 mnToCharExCount; +}; + +/* ----------------------------------- */ +/* - TextConverter - DBCS-Structures - */ +/* ----------------------------------- */ + +struct ImplDBCSEUDCData +{ + unsigned char mnLeadStart; + unsigned char mnLeadEnd; + unsigned char mnTrail1Start; + unsigned char mnTrail1End; + unsigned char mnTrail2Start; + unsigned char mnTrail2End; + unsigned char mnTrail3Start; + unsigned char mnTrail3End; + unsigned char mnTrailCount; + sal_uInt16 mnTrailRangeCount; + sal_uInt16 mnUniStart; + sal_uInt16 mnUniEnd; +}; + +struct ImplDBCSToUniLeadTab +{ + sal_uInt16 mnUniChar; + sal_uInt8 mnTrailStart; + sal_uInt8 mnTrailEnd; + const sal_uInt16* mpToUniTrailTab; +}; + +struct ImplUniToDBCSHighTab +{ + sal_uInt8 mnLowStart; + sal_uInt8 mnLowEnd; + const sal_uInt16* mpToUniTrailTab; +}; + +struct ImplDBCSConvertData +{ + const ImplDBCSToUniLeadTab* mpToUniLeadTab; + const ImplUniToDBCSHighTab* mpToDBCSHighTab; + const ImplDBCSEUDCData* mpEUDCTab; + sal_uInt16 mnEUDCCount; + unsigned char mnLeadStart; + unsigned char mnLeadEnd; + unsigned char mnTrailStart; + unsigned char mnTrailEnd; +}; + +/* ---------------------------------- */ +/* - TextConverter - EUC-Structures - */ +/* ---------------------------------- */ + +struct ImplEUCJPConvertData +{ + const ImplDBCSToUniLeadTab* mpJIS0208ToUniLeadTab; + const ImplDBCSToUniLeadTab* mpJIS0212ToUniLeadTab; + const ImplUniToDBCSHighTab* mpUniToJIS0208HighTab; + const ImplUniToDBCSHighTab* mpUniToJIS0212HighTab; +}; + +/* --------------------------------- */ +/* - TextConverter - HelpFunctions - */ +/* --------------------------------- */ + +inline sal_Unicode ImplGetUndefinedUnicodeChar( + unsigned char cChar, sal_uInt32 nFlags) +{ + return ((nFlags & RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_MASK) + == RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_MAPTOPRIVATE) ? + RTL_TEXTCVT_BYTE_PRIVATE_START + cChar : + RTL_TEXTENC_UNICODE_REPLACEMENT_CHARACTER; +} + +/* ----------------------------- */ +/* - TextConverter - Functions - */ +/* ----------------------------- */ + +sal_Size ImplDBCSToUnicode( const void* pData, void* pContext, + const char* pSrcBuf, sal_Size nSrcBytes, + sal_Unicode* pDestBuf, sal_Size nDestChars, + sal_uInt32 nFlags, sal_uInt32* pInfo, + sal_Size* pSrcCvtBytes ); +sal_Size ImplUnicodeToDBCS( const void* pData, void* pContext, + const sal_Unicode* pSrcBuf, sal_Size nSrcChars, + char* pDestBuf, sal_Size nDestBytes, + sal_uInt32 nFlags, sal_uInt32* pInfo, + sal_Size* pSrcCvtChars ); +sal_Size ImplEUCJPToUnicode( const void* pData, + void* pContext, + const char* pSrcBuf, sal_Size nSrcBytes, + sal_Unicode* pDestBuf, sal_Size nDestChars, + sal_uInt32 nFlags, sal_uInt32* pInfo, + sal_Size* pSrcCvtBytes ); +sal_Size ImplUnicodeToEUCJP( const void* pData, + void* pContext, + const sal_Unicode* pSrcBuf, sal_Size nSrcChars, + char* pDestBuf, sal_Size nDestBytes, + sal_uInt32 nFlags, sal_uInt32* pInfo, + sal_Size* pSrcCvtChars ); +void* ImplUTF7CreateUTF7TextToUnicodeContext(); +void ImplUTF7DestroyTextToUnicodeContext( void* pContext ); +void ImplUTF7ResetTextToUnicodeContext( void* pContext ); +sal_Size ImplUTF7ToUnicode( const void* pData, void* pContext, + const char* pSrcBuf, sal_Size nSrcBytes, + sal_Unicode* pDestBuf, sal_Size nDestChars, + sal_uInt32 nFlags, sal_uInt32* pInfo, + sal_Size* pSrcCvtBytes ); +void* ImplUTF7CreateUnicodeToTextContext(); +void ImplUTF7DestroyUnicodeToTextContext( void* pContext ); +void ImplUTF7ResetUnicodeToTextContext( void* pContext ); +sal_Size ImplUnicodeToUTF7( const void* pData, void* pContext, + const sal_Unicode* pSrcBuf, sal_Size nSrcChars, + char* pDestBuf, sal_Size nDestBytes, + sal_uInt32 nFlags, sal_uInt32* pInfo, + sal_Size* pSrcCvtChars ); + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |