494 lines
18 KiB
C++
494 lines
18 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/*************************************************************************
|
|
*
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* Copyright 2000, 2010 Oracle and/or its affiliates.
|
|
*
|
|
* OpenOffice.org - a multi-platform office productivity suite
|
|
*
|
|
* This file is part of OpenOffice.org.
|
|
*
|
|
* OpenOffice.org is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License version 3
|
|
* only, as published by the Free Software Foundation.
|
|
*
|
|
* OpenOffice.org 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 Lesser General Public License version 3 for more details
|
|
* (a copy is included in the LICENSE file that accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* version 3 along with OpenOffice.org. If not, see
|
|
* <http://www.openoffice.org/license.html>
|
|
* for a copy of the LGPLv3 License.
|
|
*
|
|
************************************************************************/
|
|
|
|
#include "sal/config.h"
|
|
|
|
#include <cassert>
|
|
|
|
#include "rtl/textcvt.h"
|
|
#include "sal/types.h"
|
|
|
|
#include "context.hxx"
|
|
#include "convertbig5hkscs.hxx"
|
|
#include "converter.hxx"
|
|
#include "tenchelp.hxx"
|
|
#include "unichars.hxx"
|
|
|
|
namespace {
|
|
|
|
struct ImplBig5HkscsToUnicodeContext
|
|
{
|
|
sal_Int32 m_nRow; // 0--255; 0 means none
|
|
};
|
|
|
|
}
|
|
|
|
void * ImplCreateBig5HkscsToUnicodeContext()
|
|
{
|
|
ImplBig5HkscsToUnicodeContext * pContext =
|
|
new ImplBig5HkscsToUnicodeContext;
|
|
pContext->m_nRow = 0;
|
|
return pContext;
|
|
}
|
|
|
|
void ImplResetBig5HkscsToUnicodeContext(void * pContext)
|
|
{
|
|
if (pContext)
|
|
static_cast< ImplBig5HkscsToUnicodeContext * >(pContext)->m_nRow = 0;
|
|
}
|
|
|
|
void ImplDestroyBig5HkscsToUnicodeContext(void * pContext)
|
|
{
|
|
delete static_cast< ImplBig5HkscsToUnicodeContext * >(pContext);
|
|
}
|
|
|
|
sal_Size ImplConvertBig5HkscsToUnicode(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)
|
|
{
|
|
sal_uInt16 const * pBig5Hkscs2001Data
|
|
= static_cast< ImplBig5HkscsConverterData const * >(pData)->
|
|
m_pBig5Hkscs2001ToUnicodeData;
|
|
sal_Int32 const * pBig5Hkscs2001RowOffsets
|
|
= static_cast< ImplBig5HkscsConverterData const * >(pData)->
|
|
m_pBig5Hkscs2001ToUnicodeRowOffsets;
|
|
ImplDBCSToUniLeadTab const * pBig5Data
|
|
= static_cast< ImplBig5HkscsConverterData const * >(pData)->
|
|
m_pBig5ToUnicodeData;
|
|
sal_Int32 nRow = 0;
|
|
sal_uInt32 nInfo = 0;
|
|
sal_Size nConverted = 0;
|
|
sal_Unicode * pDestBufPtr = pDestBuf;
|
|
sal_Unicode * pDestBufEnd = pDestBuf + nDestChars;
|
|
|
|
if (pContext)
|
|
nRow = static_cast< ImplBig5HkscsToUnicodeContext * >(pContext)->m_nRow;
|
|
|
|
for (; nConverted < nSrcBytes; ++nConverted)
|
|
{
|
|
bool bUndefined = true;
|
|
sal_uInt32 nChar = *(sal_uChar const *) pSrcBuf++;
|
|
if (nRow == 0)
|
|
if (nChar < 0x80)
|
|
if (pDestBufPtr != pDestBufEnd)
|
|
*pDestBufPtr++ = (sal_Unicode) nChar;
|
|
else
|
|
goto no_output;
|
|
else if (nChar >= 0x81 && nChar <= 0xFE)
|
|
nRow = nChar;
|
|
else
|
|
{
|
|
bUndefined = false;
|
|
goto bad_input;
|
|
}
|
|
else
|
|
if ((nChar >= 0x40 && nChar <= 0x7E)
|
|
|| (nChar >= 0xA1 && nChar <= 0xFE))
|
|
{
|
|
sal_uInt32 nUnicode = 0xFFFF;
|
|
sal_Int32 nOffset = pBig5Hkscs2001RowOffsets[nRow];
|
|
sal_uInt32 nFirst=0;
|
|
sal_uInt32 nLast=0;
|
|
if (nOffset != -1)
|
|
{
|
|
sal_uInt32 nFirstLast = pBig5Hkscs2001Data[nOffset++];
|
|
nFirst = nFirstLast & 0xFF;
|
|
nLast = nFirstLast >> 8;
|
|
if (nChar >= nFirst && nChar <= nLast)
|
|
nUnicode
|
|
= pBig5Hkscs2001Data[nOffset + (nChar - nFirst)];
|
|
}
|
|
if (nUnicode == 0xFFFF)
|
|
{
|
|
sal_uInt32 n = pBig5Data[nRow].mnTrailStart;
|
|
if (nChar >= n && nChar <= pBig5Data[nRow].mnTrailEnd)
|
|
{
|
|
nUnicode = pBig5Data[nRow].mpToUniTrailTab[nChar - n];
|
|
if (nUnicode == 0)
|
|
nUnicode = 0xFFFF;
|
|
assert(!ImplIsHighSurrogate(nUnicode));
|
|
}
|
|
}
|
|
if (nUnicode == 0xFFFF)
|
|
{
|
|
ImplDBCSEUDCData const * p
|
|
= static_cast< ImplBig5HkscsConverterData const * >(pData)->
|
|
m_pEudcData;
|
|
sal_uInt32 nCount
|
|
= static_cast< ImplBig5HkscsConverterData const * >(pData)->
|
|
m_nEudcCount;
|
|
sal_uInt32 i;
|
|
for (i = 0; i < nCount; ++i)
|
|
{
|
|
if (nRow >= p->mnLeadStart && nRow <= p->mnLeadEnd)
|
|
{
|
|
if (nChar < p->mnTrail1Start)
|
|
break;
|
|
if (nChar <= p->mnTrail1End)
|
|
{
|
|
nUnicode
|
|
= p->mnUniStart
|
|
+ (nRow - p->mnLeadStart)
|
|
* p->mnTrailRangeCount
|
|
+ (nChar - p->mnTrail1Start);
|
|
break;
|
|
}
|
|
if (p->mnTrailCount < 2
|
|
|| nChar < p->mnTrail2Start)
|
|
break;
|
|
if (nChar <= p->mnTrail2End)
|
|
{
|
|
nUnicode
|
|
= p->mnUniStart
|
|
+ (nRow - p->mnLeadStart)
|
|
* p->mnTrailRangeCount
|
|
+ (nChar - p->mnTrail2Start)
|
|
+ (p->mnTrail1End - p->mnTrail1Start
|
|
+ 1);
|
|
break;
|
|
}
|
|
if (p->mnTrailCount < 3
|
|
|| nChar < p->mnTrail3Start)
|
|
break;
|
|
if (nChar <= p->mnTrail3End)
|
|
{
|
|
nUnicode
|
|
= p->mnUniStart
|
|
+ (nRow - p->mnLeadStart)
|
|
* p->mnTrailRangeCount
|
|
+ (nChar - p->mnTrail3Start)
|
|
+ (p->mnTrail1End - p->mnTrail1Start
|
|
+ 1)
|
|
+ (p->mnTrail2End - p->mnTrail2Start
|
|
+ 1);
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
++p;
|
|
}
|
|
assert(!ImplIsHighSurrogate(nUnicode));
|
|
}
|
|
if (nUnicode == 0xFFFF)
|
|
goto bad_input;
|
|
if (ImplIsHighSurrogate(nUnicode))
|
|
if (pDestBufEnd - pDestBufPtr >= 2)
|
|
{
|
|
nOffset += nLast - nFirst + 1;
|
|
nFirst = pBig5Hkscs2001Data[nOffset++];
|
|
*pDestBufPtr++ = (sal_Unicode) nUnicode;
|
|
*pDestBufPtr++
|
|
= (sal_Unicode) pBig5Hkscs2001Data[
|
|
nOffset + (nChar - nFirst)];
|
|
}
|
|
else
|
|
goto no_output;
|
|
else
|
|
if (pDestBufPtr != pDestBufEnd)
|
|
*pDestBufPtr++ = (sal_Unicode) nUnicode;
|
|
else
|
|
goto no_output;
|
|
nRow = 0;
|
|
}
|
|
else
|
|
{
|
|
bUndefined = false;
|
|
goto bad_input;
|
|
}
|
|
continue;
|
|
|
|
bad_input:
|
|
switch (sal::detail::textenc::handleBadInputTextToUnicodeConversion(
|
|
bUndefined, true, 0, nFlags, &pDestBufPtr, pDestBufEnd,
|
|
&nInfo))
|
|
{
|
|
case sal::detail::textenc::BAD_INPUT_STOP:
|
|
nRow = 0;
|
|
break;
|
|
|
|
case sal::detail::textenc::BAD_INPUT_CONTINUE:
|
|
nRow = 0;
|
|
continue;
|
|
|
|
case sal::detail::textenc::BAD_INPUT_NO_OUTPUT:
|
|
goto no_output;
|
|
}
|
|
break;
|
|
|
|
no_output:
|
|
--pSrcBuf;
|
|
nInfo |= RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOSMALL;
|
|
break;
|
|
}
|
|
|
|
if (nRow != 0
|
|
&& (nInfo & (RTL_TEXTTOUNICODE_INFO_ERROR
|
|
| RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOSMALL))
|
|
== 0)
|
|
{
|
|
if ((nFlags & RTL_TEXTTOUNICODE_FLAGS_FLUSH) == 0)
|
|
nInfo |= RTL_TEXTTOUNICODE_INFO_SRCBUFFERTOSMALL;
|
|
else
|
|
switch (sal::detail::textenc::handleBadInputTextToUnicodeConversion(
|
|
false, true, 0, nFlags, &pDestBufPtr, pDestBufEnd,
|
|
&nInfo))
|
|
{
|
|
case sal::detail::textenc::BAD_INPUT_STOP:
|
|
case sal::detail::textenc::BAD_INPUT_CONTINUE:
|
|
nRow = 0;
|
|
break;
|
|
|
|
case sal::detail::textenc::BAD_INPUT_NO_OUTPUT:
|
|
nInfo |= RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOSMALL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (pContext)
|
|
static_cast< ImplBig5HkscsToUnicodeContext * >(pContext)->m_nRow = nRow;
|
|
if (pInfo)
|
|
*pInfo = nInfo;
|
|
if (pSrcCvtBytes)
|
|
*pSrcCvtBytes = nConverted;
|
|
|
|
return pDestBufPtr - pDestBuf;
|
|
}
|
|
|
|
sal_Size ImplConvertUnicodeToBig5Hkscs(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)
|
|
{
|
|
sal_uInt16 const * pBig5Hkscs2001Data
|
|
= static_cast< ImplBig5HkscsConverterData const * >(pData)->
|
|
m_pUnicodeToBig5Hkscs2001Data;
|
|
sal_Int32 const * pBig5Hkscs2001PageOffsets
|
|
= static_cast< ImplBig5HkscsConverterData const * >(pData)->
|
|
m_pUnicodeToBig5Hkscs2001PageOffsets;
|
|
sal_Int32 const * pBig5Hkscs2001PlaneOffsets
|
|
= static_cast< ImplBig5HkscsConverterData const * >(pData)->
|
|
m_pUnicodeToBig5Hkscs2001PlaneOffsets;
|
|
ImplUniToDBCSHighTab const * pBig5Data
|
|
= static_cast< ImplBig5HkscsConverterData const * >(pData)->
|
|
m_pUnicodeToBig5Data;
|
|
sal_Unicode nHighSurrogate = 0;
|
|
sal_uInt32 nInfo = 0;
|
|
sal_Size nConverted = 0;
|
|
char * pDestBufPtr = pDestBuf;
|
|
char * pDestBufEnd = pDestBuf + nDestBytes;
|
|
|
|
if (pContext)
|
|
nHighSurrogate
|
|
= ((ImplUnicodeToTextContext *) pContext)->m_nHighSurrogate;
|
|
|
|
for (; nConverted < nSrcChars; ++nConverted)
|
|
{
|
|
bool bUndefined = true;
|
|
sal_uInt32 nChar = *pSrcBuf++;
|
|
if (nHighSurrogate == 0)
|
|
{
|
|
if (ImplIsHighSurrogate(nChar))
|
|
{
|
|
nHighSurrogate = (sal_Unicode) nChar;
|
|
continue;
|
|
}
|
|
}
|
|
else if (ImplIsLowSurrogate(nChar))
|
|
nChar = ImplCombineSurrogates(nHighSurrogate, nChar);
|
|
else
|
|
{
|
|
bUndefined = false;
|
|
goto bad_input;
|
|
}
|
|
|
|
if (ImplIsLowSurrogate(nChar) || ImplIsNoncharacter(nChar))
|
|
{
|
|
bUndefined = false;
|
|
goto bad_input;
|
|
}
|
|
|
|
if (nChar < 0x80)
|
|
if (pDestBufPtr != pDestBufEnd)
|
|
*pDestBufPtr++ = static_cast< char >(nChar);
|
|
else
|
|
goto no_output;
|
|
else
|
|
{
|
|
sal_uInt32 nBytes = 0;
|
|
sal_Int32 nOffset = pBig5Hkscs2001PlaneOffsets[nChar >> 16];
|
|
if (nOffset != -1)
|
|
{
|
|
nOffset
|
|
= pBig5Hkscs2001PageOffsets[nOffset + ((nChar & 0xFF00)
|
|
>> 8)];
|
|
if (nOffset != -1)
|
|
{
|
|
sal_uInt32 nFirstLast = pBig5Hkscs2001Data[nOffset++];
|
|
sal_uInt32 nFirst = nFirstLast & 0xFF;
|
|
sal_uInt32 nLast = nFirstLast >> 8;
|
|
sal_uInt32 nIndex = nChar & 0xFF;
|
|
if (nIndex >= nFirst && nIndex <= nLast)
|
|
{
|
|
nBytes
|
|
= pBig5Hkscs2001Data[nOffset + (nIndex - nFirst)];
|
|
}
|
|
}
|
|
}
|
|
if (nBytes == 0)
|
|
{
|
|
sal_uInt32 nIndex1 = nChar >> 8;
|
|
if (nIndex1 < 0x100)
|
|
{
|
|
sal_uInt32 nIndex2 = nChar & 0xFF;
|
|
sal_uInt32 nFirst = pBig5Data[nIndex1].mnLowStart;
|
|
if (nIndex2 >= nFirst
|
|
&& nIndex2 <= pBig5Data[nIndex1].mnLowEnd)
|
|
nBytes = pBig5Data[nIndex1].
|
|
mpToUniTrailTab[nIndex2 - nFirst];
|
|
}
|
|
}
|
|
if (nBytes == 0)
|
|
{
|
|
ImplDBCSEUDCData const * p
|
|
= static_cast< ImplBig5HkscsConverterData const * >(pData)->
|
|
m_pEudcData;
|
|
sal_uInt32 nCount
|
|
= static_cast< ImplBig5HkscsConverterData const * >(pData)->
|
|
m_nEudcCount;
|
|
sal_uInt32 i;
|
|
for (i = 0; i < nCount; ++i) {
|
|
if (nChar >= p->mnUniStart && nChar <= p->mnUniEnd)
|
|
{
|
|
sal_uInt32 nIndex = nChar - p->mnUniStart;
|
|
sal_uInt32 nLeadOff = nIndex / p->mnTrailRangeCount;
|
|
sal_uInt32 nTrailOff = nIndex % p->mnTrailRangeCount;
|
|
sal_uInt32 nSize;
|
|
nBytes = (p->mnLeadStart + nLeadOff) << 8;
|
|
nSize = p->mnTrail1End - p->mnTrail1Start + 1;
|
|
if (nTrailOff < nSize)
|
|
{
|
|
nBytes |= p->mnTrail1Start + nTrailOff;
|
|
break;
|
|
}
|
|
nTrailOff -= nSize;
|
|
nSize = p->mnTrail2End - p->mnTrail2Start + 1;
|
|
if (nTrailOff < nSize)
|
|
{
|
|
nBytes |= p->mnTrail2Start + nTrailOff;
|
|
break;
|
|
}
|
|
nTrailOff -= nSize;
|
|
nBytes |= p->mnTrail3Start + nTrailOff;
|
|
break;
|
|
}
|
|
++p;
|
|
}
|
|
}
|
|
if (nBytes == 0)
|
|
goto bad_input;
|
|
if (pDestBufEnd - pDestBufPtr >= 2)
|
|
{
|
|
*pDestBufPtr++ = static_cast< char >(nBytes >> 8);
|
|
*pDestBufPtr++ = static_cast< char >(nBytes & 0xFF);
|
|
}
|
|
else
|
|
goto no_output;
|
|
}
|
|
nHighSurrogate = 0;
|
|
continue;
|
|
|
|
bad_input:
|
|
switch (sal::detail::textenc::handleBadInputUnicodeToTextConversion(
|
|
bUndefined, nChar, nFlags, &pDestBufPtr, pDestBufEnd,
|
|
&nInfo, NULL, 0, NULL))
|
|
{
|
|
case sal::detail::textenc::BAD_INPUT_STOP:
|
|
nHighSurrogate = 0;
|
|
break;
|
|
|
|
case sal::detail::textenc::BAD_INPUT_CONTINUE:
|
|
nHighSurrogate = 0;
|
|
continue;
|
|
|
|
case sal::detail::textenc::BAD_INPUT_NO_OUTPUT:
|
|
goto no_output;
|
|
}
|
|
break;
|
|
|
|
no_output:
|
|
--pSrcBuf;
|
|
nInfo |= RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
|
|
break;
|
|
}
|
|
|
|
if (nHighSurrogate != 0
|
|
&& (nInfo & (RTL_UNICODETOTEXT_INFO_ERROR
|
|
| RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL))
|
|
== 0)
|
|
{
|
|
if ((nFlags & RTL_UNICODETOTEXT_FLAGS_FLUSH) != 0)
|
|
nInfo |= RTL_UNICODETOTEXT_INFO_SRCBUFFERTOSMALL;
|
|
else
|
|
switch (sal::detail::textenc::handleBadInputUnicodeToTextConversion(
|
|
false, 0, nFlags, &pDestBufPtr, pDestBufEnd, &nInfo,
|
|
NULL, 0, NULL))
|
|
{
|
|
case sal::detail::textenc::BAD_INPUT_STOP:
|
|
case sal::detail::textenc::BAD_INPUT_CONTINUE:
|
|
nHighSurrogate = 0;
|
|
break;
|
|
|
|
case sal::detail::textenc::BAD_INPUT_NO_OUTPUT:
|
|
nInfo |= RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (pContext)
|
|
((ImplUnicodeToTextContext *) pContext)->m_nHighSurrogate
|
|
= nHighSurrogate;
|
|
if (pInfo)
|
|
*pInfo = nInfo;
|
|
if (pSrcCvtChars)
|
|
*pSrcCvtChars = nConverted;
|
|
|
|
return pDestBufPtr - pDestBuf;
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|