Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 873 insertions, 0 deletions

diff --git a/sal/textenc/convertiso2022cn.cxx b/sal/textenc/convertiso2022cn.cxx
new file mode 100644
index 000000000..60c2b5743
--- /dev/null
+++ b/sal/textenc/convertiso2022cn.cxx
@@ -0,0 +1,873 @@
+/* -*- 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 .
+ */
+
+#include <sal/config.h>
+
+#include <cassert>
+
+#include <rtl/character.hxx>
+#include <rtl/textcvt.h>
+#include <sal/types.h>
+
+#include "converter.hxx"
+#include "convertiso2022cn.hxx"
+#include "tenchelp.hxx"
+#include "unichars.hxx"
+
+namespace {
+
+enum ImplIso2022CnToUnicodeState // 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
+};
+
+struct ImplIso2022CnToUnicodeContext
+{
+    ImplIso2022CnToUnicodeState m_eState;
+    sal_uInt32 m_nRow;
+    bool m_bSo;
+    bool m_b116431;
+};
+
+enum ImplUnicodeToIso2022CnDesignator
+{
+    IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_NONE,
+    IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_2312,
+    IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_116431
+};
+
+struct ImplUnicodeToIso2022CnContext
+{
+    sal_Unicode m_nHighSurrogate;
+    ImplUnicodeToIso2022CnDesignator m_eSoDesignator;
+    bool m_b116432Designator;
+    bool m_bSo;
+};
+
+}
+
+void * ImplCreateIso2022CnToUnicodeContext()
+{
+    ImplIso2022CnToUnicodeContext * pContext =
+        new ImplIso2022CnToUnicodeContext;
+    pContext->m_eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
+    pContext->m_bSo = false;
+    pContext->m_b116431 = false;
+    return pContext;
+}
+
+void ImplResetIso2022CnToUnicodeContext(void * pContext)
+{
+    if (pContext)
+    {
+        static_cast< ImplIso2022CnToUnicodeContext * >(pContext)->m_eState
+            = IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
+        static_cast< ImplIso2022CnToUnicodeContext * >(pContext)->m_bSo = false;
+        static_cast< ImplIso2022CnToUnicodeContext * >(pContext)->m_b116431 = false;
+    }
+}
+
+void ImplDestroyIso2022CnToUnicodeContext(void * pContext)
+{
+    delete static_cast< ImplIso2022CnToUnicodeContext * >(pContext);
+}
+
+sal_Size ImplConvertIso2022CnToUnicode(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)
+{
+    ImplDBCSToUniLeadTab const * pGb2312Data
+        = static_cast< ImplIso2022CnConverterData const * >(pData)->
+              m_pGb2312ToUnicodeData;
+    sal_uInt16 const * pCns116431992Data
+        = static_cast< ImplIso2022CnConverterData const * >(pData)->
+              m_pCns116431992ToUnicodeData;
+    sal_Int32 const * pCns116431992RowOffsets
+        = static_cast< ImplIso2022CnConverterData const * >(pData)->
+              m_pCns116431992ToUnicodeRowOffsets;
+    sal_Int32 const * pCns116431992PlaneOffsets
+        = static_cast< ImplIso2022CnConverterData const * >(pData)->
+              m_pCns116431992ToUnicodePlaneOffsets;
+    ImplIso2022CnToUnicodeState eState
+        = IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
+    sal_uInt32 nRow = 0;
+    bool bSo = false;
+    bool b116431 = false;
+    sal_uInt32 nInfo = 0;
+    sal_Size nConverted = 0;
+    sal_Unicode * pDestBufPtr = pDestBuf;
+    sal_Unicode * pDestBufEnd = pDestBuf + nDestChars;
+    sal_Size startOfCurrentChar = 0;
+
+    if (pContext)
+    {
+        eState = static_cast< ImplIso2022CnToUnicodeContext * >(pContext)->m_eState;
+        nRow = static_cast< ImplIso2022CnToUnicodeContext * >(pContext)->m_nRow;
+        bSo = static_cast< ImplIso2022CnToUnicodeContext * >(pContext)->m_bSo;
+        b116431 = static_cast< ImplIso2022CnToUnicodeContext * >(pContext)->m_b116431;
+    }
+
+    for (; nConverted < nSrcBytes; ++nConverted)
+    {
+        bool bUndefined = true;
+        sal_uInt32 nChar = *reinterpret_cast<unsigned char const *>(pSrcBuf++);
+        sal_uInt32 nPlane;
+        switch (eState)
+        {
+        case IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII:
+            if (nChar == 0x0E) // SO
+            {
+                bSo = 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++ = static_cast<sal_Unicode>(nChar);
+                    startOfCurrentChar = nConverted + 1;
+                } else
+                    goto no_output;
+            else
+            {
+                bUndefined = false;
+                goto bad_input;
+            }
+            break;
+
+        case IMPL_ISO_2022_CN_TO_UNICODE_STATE_SO:
+            if (nChar == 0x0F) // SI
+            {
+                bSo = 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 = 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++ = static_cast<sal_Unicode>(nUnicode);
+                            eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_SO;
+                            startOfCurrentChar = nConverted + 1;
+                        }
+                        else
+                            goto no_output;
+                    else
+                        goto bad_input;
+                }
+            else
+            {
+                bUndefined = 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 = 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 = 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 = 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 = false;
+                goto bad_input;
+            }
+            break;
+
+        case IMPL_ISO_2022_CN_TO_UNICODE_STATE_ESC_DOLLAR_RPAREN:
+            if (nChar == 0x41) // A
+            {
+                b116431 = 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 = true;
+                eState = bSo ? IMPL_ISO_2022_CN_TO_UNICODE_STATE_SO :
+                               IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
+            }
+            else
+            {
+                bUndefined = 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 = 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 (rtl::isHighSurrogate(nUnicode))
+                            if (pDestBufEnd - pDestBufPtr >= 2)
+                            {
+                                nOffset += nLast - nFirst + 1;
+                                nFirst = pCns116431992Data[nOffset++];
+                                *pDestBufPtr++ = static_cast<sal_Unicode>(nUnicode);
+                                *pDestBufPtr++
+                                    = static_cast<sal_Unicode>(pCns116431992Data[
+                                              nOffset + (nChar - nFirst)]);
+                                startOfCurrentChar = nConverted + 1;
+                            }
+                            else
+                                goto no_output;
+                        else
+                            if (pDestBufPtr != pDestBufEnd) {
+                                *pDestBufPtr++ = static_cast<sal_Unicode>(nUnicode);
+                                startOfCurrentChar = nConverted + 1;
+                            } 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 (sal::detail::textenc::handleBadInputTextToUnicodeConversion(
+                    bUndefined, true, 0, nFlags, &pDestBufPtr, pDestBufEnd,
+                    &nInfo))
+        {
+        case sal::detail::textenc::BAD_INPUT_STOP:
+            eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
+            b116431 = false;
+            if ((nFlags & RTL_TEXTTOUNICODE_FLAGS_FLUSH) == 0) {
+                ++nConverted;
+            } else {
+                nConverted = startOfCurrentChar;
+            }
+            break;
+
+        case sal::detail::textenc::BAD_INPUT_CONTINUE:
+            eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
+            b116431 = false;
+            startOfCurrentChar = nConverted + 1;
+            continue;
+
+        case sal::detail::textenc::BAD_INPUT_NO_OUTPUT:
+            goto no_output;
+        }
+        break;
+
+    no_output:
+        --pSrcBuf;
+        nInfo |= RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOOSMALL;
+        break;
+    }
+
+    if (eState > IMPL_ISO_2022_CN_TO_UNICODE_STATE_SO
+        && (nInfo & (RTL_TEXTTOUNICODE_INFO_ERROR
+                         | RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOOSMALL))
+               == 0)
+    {
+        if ((nFlags & RTL_TEXTTOUNICODE_FLAGS_FLUSH) == 0)
+            nInfo |= RTL_TEXTTOUNICODE_INFO_SRCBUFFERTOOSMALL;
+        else
+            switch (sal::detail::textenc::handleBadInputTextToUnicodeConversion(
+                        false, true, 0, nFlags, &pDestBufPtr, pDestBufEnd,
+                        &nInfo))
+            {
+            case sal::detail::textenc::BAD_INPUT_STOP:
+                if ((nFlags & RTL_TEXTTOUNICODE_FLAGS_FLUSH) != 0) {
+                    nConverted = startOfCurrentChar;
+                }
+                [[fallthrough]];
+            case sal::detail::textenc::BAD_INPUT_CONTINUE:
+                eState = IMPL_ISO_2022_CN_TO_UNICODE_STATE_ASCII;
+                b116431 = false;
+                break;
+
+            case sal::detail::textenc::BAD_INPUT_NO_OUTPUT:
+                nInfo |= RTL_TEXTTOUNICODE_INFO_DESTBUFFERTOOSMALL;
+                break;
+            }
+    }
+
+    if (pContext)
+    {
+        static_cast< ImplIso2022CnToUnicodeContext * >(pContext)->m_eState = eState;
+        static_cast< ImplIso2022CnToUnicodeContext * >(pContext)->m_nRow = nRow;
+        static_cast< ImplIso2022CnToUnicodeContext * >(pContext)->m_bSo = bSo;
+        static_cast< ImplIso2022CnToUnicodeContext * >(pContext)->m_b116431 = b116431;
+    }
+    if (pInfo)
+        *pInfo = nInfo;
+    if (pSrcCvtBytes)
+        *pSrcCvtBytes = nConverted;
+
+    return pDestBufPtr - pDestBuf;
+}
+
+void * ImplCreateUnicodeToIso2022CnContext()
+{
+    ImplUnicodeToIso2022CnContext * pContext =
+        new ImplUnicodeToIso2022CnContext;
+    pContext->m_nHighSurrogate = 0;
+    pContext->m_eSoDesignator = IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_NONE;
+    pContext->m_b116432Designator = false;
+    pContext->m_bSo = false;
+    return pContext;
+}
+
+void ImplResetUnicodeToIso2022CnContext(void * pContext)
+{
+    if (pContext)
+    {
+        static_cast< ImplUnicodeToIso2022CnContext * >(pContext)->m_nHighSurrogate = 0;
+        static_cast< ImplUnicodeToIso2022CnContext * >(pContext)->m_eSoDesignator
+            = IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_NONE;
+        static_cast< ImplUnicodeToIso2022CnContext * >(pContext)->m_b116432Designator
+            = false;
+        static_cast< ImplUnicodeToIso2022CnContext * >(pContext)->m_bSo = false;
+    }
+}
+
+void ImplDestroyUnicodeToIso2022CnContext(void * pContext)
+{
+    delete static_cast< ImplUnicodeToIso2022CnContext * >(pContext);
+}
+
+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(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)
+{
+    ImplUniToDBCSHighTab const * pGb2312Data
+        = static_cast< ImplIso2022CnConverterData const * >(pData)->
+              m_pUnicodeToGb2312Data;
+    sal_uInt8 const * pCns116431992Data
+        = static_cast< ImplIso2022CnConverterData const * >(pData)->
+              m_pUnicodeToCns116431992Data;
+    sal_Int32 const * pCns116431992PageOffsets
+        = static_cast< ImplIso2022CnConverterData const * >(pData)->
+              m_pUnicodeToCns116431992PageOffsets;
+    sal_Int32 const * pCns116431992PlaneOffsets
+        = static_cast< ImplIso2022CnConverterData const * >(pData)->
+              m_pUnicodeToCns116431992PlaneOffsets;
+    sal_Unicode nHighSurrogate = 0;
+    ImplUnicodeToIso2022CnDesignator eSoDesignator
+        = IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_NONE;
+    bool b116432Designator = false;
+    bool bSo = false;
+    sal_uInt32 nInfo = 0;
+    sal_Size nConverted = 0;
+    char * pDestBufPtr = pDestBuf;
+    char * pDestBufEnd = pDestBuf + nDestBytes;
+    bool bWritten;
+
+    if (pContext)
+    {
+        nHighSurrogate
+            = static_cast< ImplUnicodeToIso2022CnContext * >(pContext)->m_nHighSurrogate;
+        eSoDesignator
+            = static_cast< ImplUnicodeToIso2022CnContext * >(pContext)->m_eSoDesignator;
+        b116432Designator = static_cast< ImplUnicodeToIso2022CnContext * >(pContext)->
+                                m_b116432Designator;
+        bSo = static_cast< ImplUnicodeToIso2022CnContext * >(pContext)->m_bSo;
+    }
+
+    for (; nConverted < nSrcChars; ++nConverted)
+    {
+        bool bUndefined = true;
+        sal_uInt32 nChar = *pSrcBuf++;
+        if (nHighSurrogate == 0)
+        {
+            if (rtl::isHighSurrogate(nChar))
+            {
+                nHighSurrogate = static_cast<sal_Unicode>(nChar);
+                continue;
+            }
+            else if (rtl::isLowSurrogate(nChar))
+            {
+                bUndefined = false;
+                goto bad_input;
+            }
+        }
+        else if (rtl::isLowSurrogate(nChar))
+            nChar = rtl::combineSurrogates(nHighSurrogate, nChar);
+        else
+        {
+            bUndefined = false;
+            goto bad_input;
+        }
+
+        assert(rtl::isUnicodeScalarValue(nChar));
+
+        if (nChar == 0x0A || nChar == 0x0D) // LF, CR
+        {
+            if (bSo)
+            {
+                if (pDestBufPtr != pDestBufEnd)
+                {
+                    *pDestBufPtr++ = 0x0F; // SI
+                    bSo = false;
+                    eSoDesignator
+                        = IMPL_UNICODE_TO_ISO_2022_CN_DESIGNATOR_NONE;
+                    b116432Designator = false;
+                }
+                else
+                    goto no_output;
+            }
+            if (pDestBufPtr != pDestBufEnd)
+                *pDestBufPtr++ = static_cast< 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 = false;
+                }
+                else
+                    goto no_output;
+            }
+            if (pDestBufPtr != pDestBufEnd)
+                *pDestBufPtr++ = static_cast< 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 = 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 = true;
+                    }
+                    else
+                        goto no_output;
+                }
+                if (pDestBufEnd - pDestBufPtr >= 4)
+                {
+                    *pDestBufPtr++ = static_cast< char >(nBytes >> 8);
+                    *pDestBufPtr++ = static_cast< 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 = true;
+                    }
+                    else
+                        goto no_output;
+                }
+                if (pDestBufEnd - pDestBufPtr >= 4)
+                {
+                    *pDestBufPtr++ = 0x1B; // ESC
+                    *pDestBufPtr++ = 0x4E; // N
+                    *pDestBufPtr++
+                        = static_cast< char >(0x20 + pCns116431992Data[nOffset++]);
+                    *pDestBufPtr++
+                        = static_cast< char >(0x20 + pCns116431992Data[nOffset]);
+                }
+                else
+                    goto no_output;
+            }
+        }
+        nHighSurrogate = 0;
+        continue;
+
+    bad_input:
+        switch (sal::detail::textenc::handleBadInputUnicodeToTextConversion(
+                    bUndefined, nChar, nFlags, &pDestBufPtr, pDestBufEnd,
+                    &nInfo, "\x0F" /* SI */, bSo ? 1 : 0, &bWritten))
+        {
+        case sal::detail::textenc::BAD_INPUT_STOP:
+            nHighSurrogate = 0;
+            break;
+
+        case sal::detail::textenc::BAD_INPUT_CONTINUE:
+            if (bWritten)
+                bSo = false;
+            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 ((nInfo & (RTL_UNICODETOTEXT_INFO_ERROR
+                      | RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL))
+            == 0)
+    {
+        bool bFlush = true;
+        if (nHighSurrogate != 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,
+                            "\x0F" /* SI */, bSo ? 1 : 0, &bWritten))
+                {
+                case sal::detail::textenc::BAD_INPUT_STOP:
+                    nHighSurrogate = 0;
+                    bFlush = false;
+                    break;
+
+                case sal::detail::textenc::BAD_INPUT_CONTINUE:
+                    if (bWritten)
+                        bSo = false;
+                    nHighSurrogate = 0;
+                    break;
+
+                case sal::detail::textenc::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 = false;
+            }
+            else
+                nInfo |= RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
+        }
+    }
+
+    if (pContext)
+    {
+        static_cast< ImplUnicodeToIso2022CnContext * >(pContext)->m_nHighSurrogate
+            = nHighSurrogate;
+        static_cast< ImplUnicodeToIso2022CnContext * >(pContext)->m_eSoDesignator
+            = eSoDesignator;
+        static_cast< ImplUnicodeToIso2022CnContext * >(pContext)->m_b116432Designator
+            = b116432Designator;
+        static_cast< ImplUnicodeToIso2022CnContext * >(pContext)->m_bSo = bSo;
+    }
+    if (pInfo)
+        *pInfo = nInfo;
+    if (pSrcCvtChars)
+        *pSrcCvtChars = nConverted;
+
+    return pDestBufPtr - pDestBuf;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */