#87140# Added conversion of ISO-2022-CN/KR.

1 files changed, 904 insertions, 0 deletions

diff --git a/sal/textenc/convertiso2022cn.c b/sal/textenc/convertiso2022cn.c
new file mode 100644
index 000000000000..afed0a7b5a52
--- /dev/null
+++ b/sal/textenc/convertiso2022cn.c
@@ -0,0 +1,904 @@
+/*************************************************************************
+ *
+ *  $RCSfile: convertiso2022cn.c,v $
+ *
+ *  $Revision: 1.1 $
+ *
+ *  last change: $Author: sb $ $Date: 2001-11-23 09:42:41 $
+ *
+ *  The Contents of this file are made available subject to the terms of
+ *  either of the following licenses
+ *
+ *         - GNU Lesser General Public License Version 2.1
+ *         - Sun Industry Standards Source License Version 1.1
+ *
+ *  Sun Microsystems Inc., October, 2000
+ *
+ *  GNU Lesser General Public License Version 2.1
+ *  =============================================
+ *  Copyright 2000 by Sun Microsystems, Inc.
+ *  901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License version 2.1, as published by the Free Software Foundation.
+ *
+ *  This library 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 for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *  MA  02111-1307  USA
+ *
+ *
+ *  Sun Industry Standards Source License Version 1.1
+ *  =================================================
+ *  The contents of this file are subject to the Sun Industry Standards
+ *  Source 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.openoffice.org/license.html.
+ *
+ *  Software provided under this License is provided on an "AS IS" basis,
+ *  WITHOUT WARRUNTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING,
+ *  WITHOUT LIMITATION, WARRUNTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ *  See the License for the specific provisions governing your rights and
+ *  obligations concerning the Software.
+ *
+ *  The Initial Developer of the Original Code is: Sun Microsystems, Inc..
+ *
+ *  Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ *  All Rights Reserved.
+ *
+ *  Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+#ifndef INCLUDED_RTL_TEXTENC_CONVERTISO2022CN_H
+#include "convertiso2022cn.h"
+#endif
+
+#ifndef INCLUDED_RTL_TEXTENC_CONTEXT_H
+#include "context.h"
+#endif
+#ifndef INCLUDED_RTL_TEXTENC_CONVERTER_H
+#include "converter.h"
+#endif
+#ifndef INCLUDED_RTL_TEXTENC_TENCHELP_H
+#include "tenchelp.h"
+#endif
+#ifndef INCLUDED_RTL_TEXTENC_UNICHARS_H
+#include "unichars.h"
+#endif
+
+#ifndef _RTL_ALLOC_H_
+#include "rtl/alloc.h"
+#endif
+#ifndef _RTL_TEXTCVT_H
+#include "rtl/textcvt.h"
+#endif
+#ifndef _SAL_TYPES_H_
+#include "sal/types.h"
+#endif
+
+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;
+    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 (ImplHandleBadInputMbTextToUnicodeConversion(bUndefined,
+                                                            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 (ImplHandleBadInputMbTextToUnicodeConversion(sal_False,
+                                                            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_uInt16 nBytes = 0;
+    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]);
+}
+
+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;
+            ImplUnicodeToIso2022CnDesignator eNewDesignator;
+            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;
+}