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|
/*************************************************************************
*
* 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 "convertiso2022cn.h"
#include "context.h"
#include "converter.h"
#include "tenchelp.h"
#include "unichars.h"
#include "rtl/alloc.h"
#include "rtl/textcvt.h"
#include "sal/types.h"
typedef enum /* order is important: */
{
IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII,
IMPL_ISO_2022_CN_TO_UNICODE_STATE_SO,
IMPL_ISO_2022_CN_TO_UNICODE_STATE_SO_2,
IMPL_ISO_2022_CN_TO_UNICODE_STATE_116432,
IMPL_ISO_2022_CN_TO_UNICODE_STATE_116432_2,
IMPL_ISO_2022_CN_TO_UNICODE_STATE_ESC,
IMPL_ISO_2022_CN_TO_UNICODE_STATE_ESC_DOLLAR,
IMPL_ISO_2022_CN_TO_UNICODE_STATE_ESC_DOLLAR_RPAREN,
IMPL_ISO_2022_CN_TO_UNICODE_STATE_ESC_DOLLAR_ASTERISK
} ImplIso2022CnToUnicodeState;
typedef struct
{
ImplIso2022CnToUnicodeState m_eState;
sal_uInt32 m_nRow;
sal_Bool m_bSo;
sal_Bool m_b116431;
} ImplIso2022CnToUnicodeContext;
typedef enum
{
IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_NONE,
IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_2312,
IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_116431
} ImplUnicodeToIso2022CnDesignator;
typedef struct
{
sal_Unicode m_nHighSurrogate;
ImplUnicodeToIso2022CnDesignator m_eSoDesignator;
sal_Bool m_b116432Designator;
sal_Bool m_bSo;
} ImplUnicodeToIso2022CnContext;
void * ImplCreateIso2022CnToUnicodeContext(void)
{
void * pContext
= rtl_allocateMemory(sizeof (ImplIso2022CnToUnicodeContext));
((ImplIso2022CnToUnicodeContext *) pContext)->m_eState
= IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
((ImplIso2022CnToUnicodeContext *) pContext)->m_bSo = sal_False;
((ImplIso2022CnToUnicodeContext *) pContext)->m_b116431 = sal_False;
return pContext;
}
void ImplResetIso2022CnToUnicodeContext(void * pContext)
{
if (pContext)
{
((ImplIso2022CnToUnicodeContext *) pContext)->m_eState
= IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
((ImplIso2022CnToUnicodeContext *) pContext)->m_bSo = sal_False;
((ImplIso2022CnToUnicodeContext *) pContext)->m_b116431 = sal_False;
}
}
sal_Size ImplConvertIso2022CnToUnicode(ImplTextConverterData const * pData,
void * pContext,
sal_Char const * pSrcBuf,
sal_Size nSrcBytes,
sal_Unicode * pDestBuf,
sal_Size nDestChars,
sal_uInt32 nFlags,
sal_uInt32 * pInfo,
sal_Size * pSrcCvtBytes)
{
ImplDBCSToUniLeadTab const * pGb2312Data
= ((ImplIso2022CnConverterData const *) pData)->
m_pGb2312ToUnicodeData;
sal_uInt16 const * pCns116431992Data
= ((ImplIso2022CnConverterData const *) pData)->
m_pCns116431992ToUnicodeData;
sal_Int32 const * pCns116431992RowOffsets
= ((ImplIso2022CnConverterData const *) pData)->
m_pCns116431992ToUnicodeRowOffsets;
sal_Int32 const * pCns116431992PlaneOffsets
= ((ImplIso2022CnConverterData const *) pData)->
m_pCns116431992ToUnicodePlaneOffsets;
ImplIso2022CnToUnicodeState eState
= IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
sal_uInt32 nRow = 0;
sal_Bool bSo = sal_False;
sal_Bool b116431 = sal_False;
sal_uInt32 nInfo = 0;
sal_Size nConverted = 0;
sal_Unicode * pDestBufPtr = pDestBuf;
sal_Unicode * pDestBufEnd = pDestBuf + nDestChars;
if (pContext)
{
eState = ((ImplIso2022CnToUnicodeContext *) pContext)->m_eState;
nRow = ((ImplIso2022CnToUnicodeContext *) pContext)->m_nRow;
bSo = ((ImplIso2022CnToUnicodeContext *) pContext)->m_bSo;
b116431 = ((ImplIso2022CnToUnicodeContext *) pContext)->m_b116431;
}
for (; nConverted < nSrcBytes; ++nConverted)
{
sal_Bool bUndefined = sal_True;
sal_uInt32 nChar = *(sal_uChar const *) pSrcBuf++;
sal_uInt32 nPlane;
switch (eState)
{
case IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII:
if (nChar == 0x0E) /* SO */
{
bSo = sal_True;
eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_SO;
}
else if (nChar == 0x1B) /* ESC */
eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_ESC;
else if (nChar < 0x80)
if (pDestBufPtr != pDestBufEnd)
*pDestBufPtr++ = (sal_Unicode) nChar;
else
goto no_output;
else
{
bUndefined = sal_False;
goto bad_input;
}
break;
case IMPL_ISO_2022_CN_TO_UNICODE_STATE_SO:
if (nChar == 0x0F) /* SI */
{
bSo = sal_False;
eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
}
else if (nChar == 0x1B) /* ESC */
eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_ESC;
else if (nChar >= 0x21 && nChar <= 0x7E)
{
nRow = nChar;
eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_SO_2;
}
else
{
bUndefined = sal_False;
goto bad_input;
}
break;
case IMPL_ISO_2022_CN_TO_UNICODE_STATE_SO_2:
if (nChar >= 0x21 && nChar <= 0x7E)
if (b116431)
{
nPlane = 0;
goto transform;
}
else
{
sal_uInt16 nUnicode = 0;
sal_uInt32 nFirst;
nRow += 0x80;
nChar += 0x80;
nFirst = pGb2312Data[nRow].mnTrailStart;
if (nChar >= nFirst
&& nChar <= pGb2312Data[nRow].mnTrailEnd)
nUnicode = pGb2312Data[nRow].
mpToUniTrailTab[nChar - nFirst];
if (nUnicode != 0)
if (pDestBufPtr != pDestBufEnd)
{
*pDestBufPtr++ = (sal_Unicode) nUnicode;
eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_SO;
}
else
goto no_output;
else
goto bad_input;
}
else
{
bUndefined = sal_False;
goto bad_input;
}
break;
case IMPL_ISO_2022_CN_TO_UNICODE_STATE_116432:
if (nChar >= 0x21 && nChar <= 0x7E)
{
nRow = nChar;
eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_116432_2;
}
else
{
bUndefined = sal_False;
goto bad_input;
}
break;
case IMPL_ISO_2022_CN_TO_UNICODE_STATE_116432_2:
if (nChar >= 0x21 && nChar <= 0x7E)
{
nPlane = 1;
goto transform;
}
else
{
bUndefined = sal_False;
goto bad_input;
}
break;
case IMPL_ISO_2022_CN_TO_UNICODE_STATE_ESC:
if (nChar == 0x24) /* $ */
eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_ESC_DOLLAR;
else if (nChar == 0x4E) /* N */
eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_116432;
else
{
bUndefined = sal_False;
goto bad_input;
}
break;
case IMPL_ISO_2022_CN_TO_UNICODE_STATE_ESC_DOLLAR:
if (nChar == 0x29) /* ) */
eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_ESC_DOLLAR_RPAREN;
else if (nChar == 0x2A) /* * */
eState
= IMPL_ISO_2022_CN_TO_UNICODE_STATE_ESC_DOLLAR_ASTERISK;
else
{
bUndefined = sal_False;
goto bad_input;
}
break;
case IMPL_ISO_2022_CN_TO_UNICODE_STATE_ESC_DOLLAR_RPAREN:
if (nChar == 0x41) /* A */
{
b116431 = sal_False;
eState = bSo ? IMPL_ISO_2022_CN_TO_UNICODE_STATE_SO :
IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
}
else if (nChar == 0x47) /* G */
{
b116431 = sal_True;
eState = bSo ? IMPL_ISO_2022_CN_TO_UNICODE_STATE_SO :
IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
}
else
{
bUndefined = sal_False;
goto bad_input;
}
break;
case IMPL_ISO_2022_CN_TO_UNICODE_STATE_ESC_DOLLAR_ASTERISK:
if (nChar == 0x48) /* H */
eState = bSo ? IMPL_ISO_2022_CN_TO_UNICODE_STATE_SO :
IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
else
{
bUndefined = sal_False;
goto bad_input;
}
break;
}
continue;
transform:
{
sal_Int32 nPlaneOffset = pCns116431992PlaneOffsets[nPlane];
if (nPlaneOffset == -1)
goto bad_input;
else
{
sal_Int32 nOffset
= pCns116431992RowOffsets[nPlaneOffset + (nRow - 0x21)];
if (nOffset == -1)
goto bad_input;
else
{
sal_uInt32 nFirstLast = pCns116431992Data[nOffset++];
sal_uInt32 nFirst = nFirstLast & 0xFF;
sal_uInt32 nLast = nFirstLast >> 8;
nChar -= 0x20;
if (nChar >= nFirst && nChar <= nLast)
{
sal_uInt32 nUnicode
= pCns116431992Data[nOffset + (nChar - nFirst)];
if (nUnicode == 0xFFFF)
goto bad_input;
else if (ImplIsHighSurrogate(nUnicode))
if (pDestBufEnd - pDestBufPtr >= 2)
{
nOffset += nLast - nFirst + 1;
nFirst = pCns116431992Data[nOffset++];
*pDestBufPtr++ = (sal_Unicode) nUnicode;
*pDestBufPtr++
= (sal_Unicode)
pCns116431992Data[
nOffset + (nChar - nFirst)];
}
else
goto no_output;
else
if (pDestBufPtr != pDestBufEnd)
*pDestBufPtr++ = (sal_Unicode) nUnicode;
else
goto no_output;
}
else
goto bad_input;
eState = bSo ? IMPL_ISO_2022_CN_TO_UNICODE_STATE_SO :
IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
}
}
continue;
}
bad_input:
switch (ImplHandleBadInputTextToUnicodeConversion(
bUndefined, sal_True, 0, nFlags, &pDestBufPtr, pDestBufEnd,
&nInfo))
{
case IMPL_BAD_INPUT_STOP:
eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
b116431 = sal_False;
break;
case IMPL_BAD_INPUT_CONTINUE:
eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
b116431 = sal_False;
continue;
case IMPL_BAD_INPUT_NO_OUTPUT:
goto no_output;
}
break;
no_output:
--pSrcBuf;
nInfo |= RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOSMALL;
break;
}
if (eState > IMPL_ISO_2022_CN_TO_UNICODE_STATE_SO
&& (nInfo & (RTL_TEXTTOUNICODE_INFO_ERROR
| RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOSMALL))
== 0)
{
if ((nFlags & RTL_TEXTTOUNICODE_FLAGS_FLUSH) == 0)
nInfo |= RTL_TEXTTOUNICODE_INFO_SRCBUFFERTOSMALL;
else
switch (ImplHandleBadInputTextToUnicodeConversion(
sal_False, sal_True, 0, nFlags, &pDestBufPtr, pDestBufEnd,
&nInfo))
{
case IMPL_BAD_INPUT_STOP:
case IMPL_BAD_INPUT_CONTINUE:
eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
b116431 = sal_False;
break;
case IMPL_BAD_INPUT_NO_OUTPUT:
nInfo |= RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOSMALL;
break;
}
}
if (pContext)
{
((ImplIso2022CnToUnicodeContext *) pContext)->m_eState = eState;
((ImplIso2022CnToUnicodeContext *) pContext)->m_nRow = nRow;
((ImplIso2022CnToUnicodeContext *) pContext)->m_bSo = bSo;
((ImplIso2022CnToUnicodeContext *) pContext)->m_b116431 = b116431;
}
if (pInfo)
*pInfo = nInfo;
if (pSrcCvtBytes)
*pSrcCvtBytes = nConverted;
return pDestBufPtr - pDestBuf;
}
void * ImplCreateUnicodeToIso2022CnContext(void)
{
void * pContext
= rtl_allocateMemory(sizeof (ImplUnicodeToIso2022CnContext));
((ImplUnicodeToIso2022CnContext *) pContext)->m_nHighSurrogate = 0;
((ImplUnicodeToIso2022CnContext *) pContext)->m_eSoDesignator
= IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_NONE;
((ImplUnicodeToIso2022CnContext *) pContext)->m_b116432Designator
= sal_False;
((ImplUnicodeToIso2022CnContext *) pContext)->m_bSo = sal_False;
return pContext;
}
void ImplResetUnicodeToIso2022CnContext(void * pContext)
{
if (pContext)
{
((ImplUnicodeToIso2022CnContext *) pContext)->m_nHighSurrogate = 0;
((ImplUnicodeToIso2022CnContext *) pContext)->m_eSoDesignator
= IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_NONE;
((ImplUnicodeToIso2022CnContext *) pContext)->m_b116432Designator
= sal_False;
((ImplUnicodeToIso2022CnContext *) pContext)->m_bSo = sal_False;
}
}
static sal_uInt32 ImplIso2022CnTranslateTo2312(ImplUniToDBCSHighTab const *
pGb2312Data,
sal_uInt32 nChar)
{
sal_uInt32 nIndex1 = nChar >> 8;
if (nIndex1 < 0x100)
{
sal_uInt32 nIndex2 = nChar & 0xFF;
sal_uInt32 nFirst = pGb2312Data[nIndex1].mnLowStart;
if (nIndex2 >= nFirst && nIndex2 <= pGb2312Data[nIndex1].mnLowEnd)
return pGb2312Data[nIndex1].mpToUniTrailTab[nIndex2 - nFirst]
& 0x7F7F;
}
return 0;
}
static sal_uInt32
ImplIso2022CnTranslateTo116431(sal_uInt8 const * pCns116431992Data,
sal_Int32 const * pCns116431992PageOffsets,
sal_Int32 const * pCns116431992PlaneOffsets,
sal_uInt32 nChar)
{
sal_Int32 nOffset = pCns116431992PlaneOffsets[nChar >> 16];
sal_uInt32 nFirst;
sal_uInt32 nLast;
sal_uInt32 nPlane;
if (nOffset == -1)
return 0;
nOffset = pCns116431992PageOffsets[nOffset + ((nChar & 0xFF00) >> 8)];
if (nOffset == -1)
return 0;
nFirst = pCns116431992Data[nOffset++];
nLast = pCns116431992Data[nOffset++];
nChar &= 0xFF;
if (nChar < nFirst || nChar > nLast)
return 0;
nOffset += 3 * (nChar - nFirst);
nPlane = pCns116431992Data[nOffset++];
if (nPlane != 1)
return 0;
return (0x20 + pCns116431992Data[nOffset]) << 8
| (0x20 + pCns116431992Data[nOffset + 1]);
}
sal_Size ImplConvertUnicodeToIso2022Cn(ImplTextConverterData const * pData,
void * pContext,
sal_Unicode const * pSrcBuf,
sal_Size nSrcChars,
sal_Char * pDestBuf,
sal_Size nDestBytes,
sal_uInt32 nFlags,
sal_uInt32 * pInfo,
sal_Size * pSrcCvtChars)
{
ImplUniToDBCSHighTab const * pGb2312Data
= ((ImplIso2022CnConverterData const *) pData)->
m_pUnicodeToGb2312Data;
sal_uInt8 const * pCns116431992Data
= ((ImplIso2022CnConverterData const *) pData)->
m_pUnicodeToCns116431992Data;
sal_Int32 const * pCns116431992PageOffsets
= ((ImplIso2022CnConverterData const *) pData)->
m_pUnicodeToCns116431992PageOffsets;
sal_Int32 const * pCns116431992PlaneOffsets
= ((ImplIso2022CnConverterData const *) pData)->
m_pUnicodeToCns116431992PlaneOffsets;
sal_Unicode nHighSurrogate = 0;
ImplUnicodeToIso2022CnDesignator eSoDesignator
= IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_NONE;
sal_Bool b116432Designator = sal_False;
sal_Bool bSo = sal_False;
sal_uInt32 nInfo = 0;
sal_Size nConverted = 0;
sal_Char * pDestBufPtr = pDestBuf;
sal_Char * pDestBufEnd = pDestBuf + nDestBytes;
sal_Bool bWritten;
if (pContext)
{
nHighSurrogate
= ((ImplUnicodeToIso2022CnContext *) pContext)->m_nHighSurrogate;
eSoDesignator
= ((ImplUnicodeToIso2022CnContext *) pContext)->m_eSoDesignator;
b116432Designator = ((ImplUnicodeToIso2022CnContext *) pContext)->
m_b116432Designator;
bSo = ((ImplUnicodeToIso2022CnContext *) pContext)->m_bSo;
}
for (; nConverted < nSrcChars; ++nConverted)
{
sal_Bool bUndefined = sal_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 = sal_False;
goto bad_input;
}
if (ImplIsLowSurrogate(nChar) || ImplIsNoncharacter(nChar))
{
bUndefined = sal_False;
goto bad_input;
}
if (nChar == 0x0A || nChar == 0x0D) /* LF, CR */
{
if (bSo)
{
if (pDestBufPtr != pDestBufEnd)
{
*pDestBufPtr++ = 0x0F; /* SI */
bSo = sal_False;
eSoDesignator
= IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_NONE;
b116432Designator = sal_False;
}
else
goto no_output;
}
if (pDestBufPtr != pDestBufEnd)
*pDestBufPtr++ = (sal_Char) nChar;
else
goto no_output;
}
else if (nChar == 0x0E || nChar == 0x0F || nChar == 0x1B)
goto bad_input;
else if (nChar < 0x80)
{
if (bSo)
{
if (pDestBufPtr != pDestBufEnd)
{
*pDestBufPtr++ = 0x0F; /* SI */
bSo = sal_False;
}
else
goto no_output;
}
if (pDestBufPtr != pDestBufEnd)
*pDestBufPtr++ = (sal_Char) nChar;
else
goto no_output;
}
else
{
sal_uInt32 nBytes = 0;
ImplUnicodeToIso2022CnDesignator eNewDesignator =
IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_NONE;
switch (eSoDesignator)
{
case IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_NONE:
nBytes = ImplIso2022CnTranslateTo2312(pGb2312Data, nChar);
if (nBytes != 0)
{
eNewDesignator
= IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_2312;
break;
}
nBytes = ImplIso2022CnTranslateTo116431(
pCns116431992Data,
pCns116431992PageOffsets,
pCns116431992PlaneOffsets,
nChar);
if (nBytes != 0)
{
eNewDesignator
= IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_116431;
break;
}
break;
case IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_2312:
nBytes = ImplIso2022CnTranslateTo2312(pGb2312Data, nChar);
if (nBytes != 0)
{
eNewDesignator
= IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_NONE;
break;
}
nBytes = ImplIso2022CnTranslateTo116431(
pCns116431992Data,
pCns116431992PageOffsets,
pCns116431992PlaneOffsets,
nChar);
if (nBytes != 0)
{
eNewDesignator
= IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_116431;
break;
}
break;
case IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_116431:
nBytes = ImplIso2022CnTranslateTo116431(
pCns116431992Data,
pCns116431992PageOffsets,
pCns116431992PlaneOffsets,
nChar);
if (nBytes != 0)
{
eNewDesignator
= IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_NONE;
break;
}
nBytes = ImplIso2022CnTranslateTo2312(pGb2312Data, nChar);
if (nBytes != 0)
{
eNewDesignator
= IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_2312;
break;
}
break;
}
if (nBytes != 0)
{
if (eNewDesignator
!= IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_NONE)
{
if (bSo)
{
if (pDestBufPtr != pDestBufEnd)
{
*pDestBufPtr++ = 0x0F; /* SI */
bSo = sal_False;
}
else
goto no_output;
}
if (pDestBufEnd - pDestBufPtr >= 4)
{
*pDestBufPtr++ = 0x1B; /* ESC */
*pDestBufPtr++ = 0x24; /* $ */
*pDestBufPtr++ = 0x29; /* ) */
*pDestBufPtr++
= eNewDesignator
== IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_2312 ?
0x41 : 0x47; /* A, G */
eSoDesignator = eNewDesignator;
}
else
goto no_output;
}
if (!bSo)
{
if (pDestBufPtr != pDestBufEnd)
{
*pDestBufPtr++ = 0x0E; /* SO */
bSo = sal_True;
}
else
goto no_output;
}
if (pDestBufEnd - pDestBufPtr >= 4)
{
*pDestBufPtr++ = (sal_Char) (nBytes >> 8);
*pDestBufPtr++ = (sal_Char) (nBytes & 0xFF);
}
else
goto no_output;
}
else
{
sal_Int32 nOffset = pCns116431992PlaneOffsets[nChar >> 16];
sal_uInt32 nFirst;
sal_uInt32 nLast;
sal_uInt32 nPlane;
if (nOffset == -1)
goto bad_input;
nOffset
= pCns116431992PageOffsets[nOffset
+ ((nChar & 0xFF00) >> 8)];
if (nOffset == -1)
goto bad_input;
nFirst = pCns116431992Data[nOffset++];
nLast = pCns116431992Data[nOffset++];
nChar &= 0xFF;
if (nChar < nFirst || nChar > nLast)
goto bad_input;
nOffset += 3 * (nChar - nFirst);
nPlane = pCns116431992Data[nOffset++];
if (nPlane != 2)
goto bad_input;
if (!b116432Designator)
{
if (pDestBufEnd - pDestBufPtr >= 4)
{
*pDestBufPtr++ = 0x1B; /* ESC */
*pDestBufPtr++ = 0x24; /* $ */
*pDestBufPtr++ = 0x2A; /* * */
*pDestBufPtr++ = 0x48; /* H */
b116432Designator = sal_True;
}
else
goto no_output;
}
if (pDestBufEnd - pDestBufPtr >= 4)
{
*pDestBufPtr++ = 0x1B; /* ESC */
*pDestBufPtr++ = 0x4E; /* N */
*pDestBufPtr++
= (sal_Char) (0x20 + pCns116431992Data[nOffset++]);
*pDestBufPtr++
= (sal_Char) (0x20 + pCns116431992Data[nOffset]);
}
else
goto no_output;
}
}
nHighSurrogate = 0;
continue;
bad_input:
switch (ImplHandleBadInputUnicodeToTextConversion(bUndefined,
nChar,
nFlags,
&pDestBufPtr,
pDestBufEnd,
&nInfo,
"\x0F", /* SI */
bSo ? 1 : 0,
&bWritten))
{
case IMPL_BAD_INPUT_STOP:
nHighSurrogate = 0;
break;
case IMPL_BAD_INPUT_CONTINUE:
if (bWritten)
bSo = sal_False;
nHighSurrogate = 0;
continue;
case IMPL_BAD_INPUT_NO_OUTPUT:
goto no_output;
}
break;
no_output:
--pSrcBuf;
nInfo |= RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
break;
}
if ((nInfo & (RTL_UNICODETOTEXT_INFO_ERROR
| RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL))
== 0)
{
sal_Bool bFlush = sal_True;
if (nHighSurrogate != 0)
{
if ((nFlags & RTL_UNICODETOTEXT_FLAGS_FLUSH) != 0)
nInfo |= RTL_UNICODETOTEXT_INFO_SRCBUFFERTOSMALL;
else
switch (ImplHandleBadInputUnicodeToTextConversion(
sal_False,
0,
nFlags,
&pDestBufPtr,
pDestBufEnd,
&nInfo,
"\x0F", /* SI */
bSo ? 1 : 0,
&bWritten))
{
case IMPL_BAD_INPUT_STOP:
nHighSurrogate = 0;
bFlush = sal_False;
break;
case IMPL_BAD_INPUT_CONTINUE:
if (bWritten)
bSo = sal_False;
nHighSurrogate = 0;
break;
case IMPL_BAD_INPUT_NO_OUTPUT:
nInfo |= RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
break;
}
}
if (bFlush && bSo && (nFlags & RTL_UNICODETOTEXT_FLAGS_FLUSH) != 0)
{
if (pDestBufPtr != pDestBufEnd)
{
*pDestBufPtr++ = 0x0F; /* SI */
bSo = sal_False;
}
else
nInfo |= RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
}
}
if (pContext)
{
((ImplUnicodeToIso2022CnContext *) pContext)->m_nHighSurrogate
= nHighSurrogate;
((ImplUnicodeToIso2022CnContext *) pContext)->m_eSoDesignator
= eSoDesignator;
((ImplUnicodeToIso2022CnContext *) pContext)->m_b116432Designator
= b116432Designator;
((ImplUnicodeToIso2022CnContext *) pContext)->m_bSo = bSo;
}
if (pInfo)
*pInfo = nInfo;
if (pSrcCvtChars)
*pSrcCvtChars = nConverted;
return pDestBufPtr - pDestBuf;
}
|
