xmluconv.cxx

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/* -*- 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 <string_view>

#include <xmloff/xmluconv.hxx>

#include <com/sun/star/util/DateTime.hpp>
#include <com/sun/star/util/Date.hpp>
#include <rtl/ustrbuf.hxx>
#include <osl/diagnose.h>
#include <sal/log.hxx>
#include <xmloff/xmlement.hxx>
#include <xmloff/xmltoken.hxx>
#include <rtl/math.hxx>

#include <tools/date.hxx>
#include <tools/time.hxx>
#include <tools/fldunit.hxx>

#include <com/sun/star/drawing/Position3D.hpp>
#include <com/sun/star/frame/XModel.hpp>
#include <com/sun/star/util/XNumberFormatsSupplier.hpp>
#include <com/sun/star/style/NumberingType.hpp>
#include <com/sun/star/text/DefaultNumberingProvider.hpp>
#include <com/sun/star/text/XDefaultNumberingProvider.hpp>
#include <com/sun/star/text/XNumberingTypeInfo.hpp>
#include <com/sun/star/i18n/CharacterClassification.hpp>
#include <com/sun/star/i18n/UnicodeType.hpp>
#include <basegfx/vector/b3dvector.hxx>

#include <sax/tools/converter.hxx>


using namespace com::sun::star;
using namespace com::sun::star::uno;
using namespace com::sun::star::lang;
using namespace com::sun::star::text;
using namespace com::sun::star::style;
using namespace ::com::sun::star::i18n;
using namespace ::xmloff::token;


const sal_Int8 XML_MAXDIGITSCOUNT_TIME = 11;
#define XML_NULLDATE "NullDate"

struct SvXMLUnitConverter::Impl
{
    sal_Int16 m_eCoreMeasureUnit; /*css::util::MeasureUnit*/
    sal_Int16 m_eXMLMeasureUnit; /*css::util::MeasureUnit*/
    util::Date m_aNullDate;
    mutable uno::Reference< text::XNumberingTypeInfo > m_xNumTypeInfo;
    mutable uno::Reference< i18n::XCharacterClassification > m_xCharClass;
    uno::Reference< uno::XComponentContext > m_xContext;

    Impl(uno::Reference<uno::XComponentContext> const& xContext,
            sal_Int16 const eCoreMeasureUnit,
            sal_Int16 const eXMLMeasureUnit)
        : m_eCoreMeasureUnit(eCoreMeasureUnit)
        , m_eXMLMeasureUnit(eXMLMeasureUnit)
        , m_aNullDate(30, 12, 1899)
        , m_xContext(xContext)
    {
        OSL_ENSURE( m_xContext.is(), "got no service manager" );
    }

    void createNumTypeInfo() const;
};


void SvXMLUnitConverter::Impl::createNumTypeInfo() const
{
    Reference<XDefaultNumberingProvider> xDefNum = DefaultNumberingProvider::create(m_xContext);
    m_xNumTypeInfo.set(xDefNum, uno::UNO_QUERY);
}

const uno::Reference< text::XNumberingTypeInfo >&
SvXMLUnitConverter::getNumTypeInfo() const
{
    if (!m_pImpl->m_xNumTypeInfo.is())
    {
        m_pImpl->createNumTypeInfo();
    }
    return m_pImpl->m_xNumTypeInfo;
}

void SvXMLUnitConverter::SetCoreMeasureUnit(sal_Int16 const eCoreMeasureUnit/*css::util::MeasureUnit*/)
{
    m_pImpl->m_eCoreMeasureUnit = eCoreMeasureUnit;
}

void SvXMLUnitConverter::SetXMLMeasureUnit(sal_Int16 const eXMLMeasureUnit/*css::util::MeasureUnit*/)
{
    m_pImpl->m_eXMLMeasureUnit = eXMLMeasureUnit;
}

sal_Int16 SvXMLUnitConverter::GetXMLMeasureUnit() const
{
    return m_pImpl->m_eXMLMeasureUnit;
}

SvXMLUnitConverter::SvXMLUnitConverter(
    const uno::Reference<uno::XComponentContext>& xContext,
    sal_Int16 const eCoreMeasureUnit,
    sal_Int16 const eXMLMeasureUnit)
: m_pImpl(new Impl(xContext, eCoreMeasureUnit, eXMLMeasureUnit))
{
}

SvXMLUnitConverter::~SvXMLUnitConverter()
{
}

sal_Int16 SvXMLUnitConverter::GetMeasureUnit(FieldUnit const nFieldUnit)
{
    sal_Int16 eUnit = util::MeasureUnit::INCH;
    switch( nFieldUnit )
    {
    case FieldUnit::MM:
        eUnit = util::MeasureUnit::MM;
        break;
    case FieldUnit::CM:
    case FieldUnit::M:
    case FieldUnit::KM:
        eUnit = util::MeasureUnit::CM;
        break;
    case FieldUnit::TWIP:
        eUnit = util::MeasureUnit::TWIP;
        break;
    case FieldUnit::POINT:
    case FieldUnit::PICA:
        eUnit = util::MeasureUnit::POINT;
        break;
    case FieldUnit::MM_100TH:
        eUnit = util::MeasureUnit::MM_100TH;
        break;
    case FieldUnit::INCH:
        eUnit = util::MeasureUnit::INCH;
        break;
    default:
        assert(false);
        break;
    }
    return eUnit;
}

bool SvXMLUnitConverter::convertMeasureToCore( sal_Int32& nValue,
                                         std::u16string_view rString,
                                         sal_Int32 nMin, sal_Int32 nMax ) const
{
    return ::sax::Converter::convertMeasure( nValue, rString,
                                               m_pImpl->m_eCoreMeasureUnit,
                                               nMin, nMax );
}

bool SvXMLUnitConverter::convertMeasureToCore( sal_Int32& nValue,
                                         std::string_view rString,
                                         sal_Int32 nMin, sal_Int32 nMax ) const
{
    return ::sax::Converter::convertMeasure( nValue, rString,
                                               m_pImpl->m_eCoreMeasureUnit,
                                               nMin, nMax );
}

void SvXMLUnitConverter::convertMeasureToXML( OUStringBuffer& rString,
                                         sal_Int32 nMeasure ) const
{
    ::sax::Converter::convertMeasure( rString, nMeasure,
                                        m_pImpl->m_eCoreMeasureUnit,
                                        m_pImpl->m_eXMLMeasureUnit );
}

OUString SvXMLUnitConverter::convertMeasureToXML( sal_Int32 nMeasure ) const
{
    OUStringBuffer s;
    ::sax::Converter::convertMeasure( s, nMeasure,
                                        m_pImpl->m_eCoreMeasureUnit,
                                        m_pImpl->m_eXMLMeasureUnit );
    return s.makeStringAndClear();
}

bool SvXMLUnitConverter::convertEnumImpl( sal_uInt16& rEnum,
                                      std::u16string_view rValue,
                                      const SvXMLEnumStringMapEntry<sal_uInt16> *pMap )
{
    while( pMap->GetName() )
    {
        auto nameLength = pMap->GetNameLength();
        if( static_cast<sal_Int32>(rValue.size()) == nameLength &&
            rtl_ustr_asciil_reverseEquals_WithLength(
                    rValue.data(), pMap->GetName(), nameLength ) )
        {
            rEnum = pMap->GetValue();
            return true;
        }
        ++pMap;
    }

    return false;
}

bool SvXMLUnitConverter::convertEnumImpl(
    sal_uInt16& rEnum,
    std::u16string_view rValue,
    const SvXMLEnumMapEntry<sal_uInt16> *pMap )
{
    while( pMap->GetToken() != XML_TOKEN_INVALID )
    {
        if( IsXMLToken( rValue, pMap->GetToken() ) )
        {
            rEnum = pMap->GetValue();
            return true;
        }
        ++pMap;
    }
    return false;
}

bool SvXMLUnitConverter::convertEnumImpl(
    sal_uInt16& rEnum,
    std::string_view rValue,
    const SvXMLEnumMapEntry<sal_uInt16> *pMap )
{
    while( pMap->GetToken() != XML_TOKEN_INVALID )
    {
        if( IsXMLToken( rValue, pMap->GetToken() ) )
        {
            rEnum = pMap->GetValue();
            return true;
        }
        ++pMap;
    }
    return false;
}

bool SvXMLUnitConverter::convertEnumImpl(
    OUStringBuffer& rBuffer,
    sal_uInt16 nValue,
    const SvXMLEnumMapEntry<sal_uInt16> *pMap,
    enum XMLTokenEnum eDefault)
{
    enum XMLTokenEnum eTok = eDefault;

    while( pMap->GetToken() != XML_TOKEN_INVALID )
    {
        if( pMap->GetValue() == nValue )
        {
            eTok = pMap->GetToken();
            break;
        }
        ++pMap;
    }

    // the map may have contained XML_TOKEN_INVALID
    if( eTok == XML_TOKEN_INVALID )
        eTok = eDefault;

    if( eTok != XML_TOKEN_INVALID )
        rBuffer.append( GetXMLToken(eTok) );

    return (eTok != XML_TOKEN_INVALID);
}

static int lcl_gethex( int nChar )
{
    if( nChar >= '0' && nChar <= '9' )
        return nChar - '0';
    else if( nChar >= 'a' && nChar <= 'f' )
        return nChar - 'a' + 10;
    else if( nChar >= 'A' && nChar <= 'F' )
        return nChar - 'A' + 10;
    else
        return 0;
}

const char aHexTab[] = "0123456789abcdef";


void SvXMLUnitConverter::convertDouble(OUStringBuffer& rBuffer,
    double fNumber) const
{
    ::sax::Converter::convertDouble(rBuffer, fNumber,
        true/*bWriteUnits*/, m_pImpl->m_eCoreMeasureUnit, m_pImpl->m_eXMLMeasureUnit);
}

bool SvXMLUnitConverter::convertDouble(double& rValue,
    std::u16string_view rString) const
{
    sal_Int16 const eSrcUnit = ::sax::Converter::GetUnitFromString(
            rString, m_pImpl->m_eCoreMeasureUnit);

    return ::sax::Converter::convertDouble(rValue, rString,
        eSrcUnit, m_pImpl->m_eCoreMeasureUnit);
}

bool SvXMLUnitConverter::setNullDate(const css::uno::Reference <css::frame::XModel>& xModel)
{
    css::uno::Reference <css::util::XNumberFormatsSupplier> xNumberFormatsSupplier (xModel, css::uno::UNO_QUERY);
    if (xNumberFormatsSupplier.is())
    {
        const css::uno::Reference <css::beans::XPropertySet> xPropertySet = xNumberFormatsSupplier->getNumberFormatSettings();
        return xPropertySet.is() && (xPropertySet->getPropertyValue(XML_NULLDATE) >>= m_pImpl->m_aNullDate);
    }
    return false;
}

void SvXMLUnitConverter::convertDateTime(OUStringBuffer& rBuffer,
                     const double& fDateTime, bool const bAddTimeIf0AM)
{
    convertDateTime(rBuffer, fDateTime, m_pImpl->m_aNullDate, bAddTimeIf0AM);
}

bool SvXMLUnitConverter::convertDateTime(double& fDateTime,
                     std::u16string_view rString)
{
    return convertDateTime(fDateTime, rString, m_pImpl->m_aNullDate);
}

bool SvXMLUnitConverter::convertDateTime(double& fDateTime,
                     std::string_view rString)
{
    return convertDateTime(fDateTime, rString, m_pImpl->m_aNullDate);
}

void SvXMLUnitConverter::convertDateTime( OUStringBuffer& rBuffer,
        const double& fDateTime,
        const css::util::Date& aTempNullDate,
        bool bAddTimeIf0AM )
{
    double fValue = fDateTime;
    const sal_Int32 nDays = static_cast <sal_Int32> (::rtl::math::approxFloor (fValue));
    Date aDate (aTempNullDate.Day, aTempNullDate.Month, aTempNullDate.Year);
    aDate.AddDays( nDays);
    fValue -= nDays;
    const bool bHasTime = (fValue > 0.0);

    sal_Int16 nTempYear = aDate.GetYear();
    assert(nTempYear != 0);
    if (nTempYear < 0)
    {
        rBuffer.append( '-');
        nTempYear = -nTempYear;
    }
    if (nTempYear < 1000)
        rBuffer.append( '0');
    if (nTempYear < 100)
        rBuffer.append( '0');
    if (nTempYear < 10)
        rBuffer.append( '0');
    rBuffer.append( sal_Int32( nTempYear));
    rBuffer.append( '-');
    sal_uInt16 nTemp = aDate.GetMonth();
    assert(1 <= nTemp && nTemp <= 12);
    if (nTemp < 10)
        rBuffer.append( '0');
    rBuffer.append( sal_Int32( nTemp));
    rBuffer.append( '-');
    nTemp = aDate.GetDay();
    assert(1 <= nTemp && nTemp <= 31);
    if (nTemp < 10)
        rBuffer.append( '0');
    rBuffer.append( sal_Int32( nTemp));
    if (!(bHasTime || bAddTimeIf0AM))
        return;

    double fCount;
    if (nDays > 0)
        fCount = ::rtl::math::approxFloor (log10(static_cast<double>(nDays))) + 1;
    else if (nDays < 0)
        fCount = ::rtl::math::approxFloor (log10(static_cast<double>(nDays * -1))) + 1;
    else
        fCount = 0.0;
    const int nDigits = sal_Int16(fCount) + 4;  // +4 for *86400 in seconds
    const int nFractionDecimals = std::max( XML_MAXDIGITSCOUNT_TIME - nDigits, 0);

    sal_uInt16 nHour, nMinute, nSecond;
    double fFractionOfSecond;
    // Pass the original date+time value for proper scaling and rounding.
    tools::Time::GetClock( fDateTime, nHour, nMinute, nSecond, fFractionOfSecond, nFractionDecimals);

    rBuffer.append( 'T');
    if (nHour < 10)
        rBuffer.append( '0');
    rBuffer.append( sal_Int32( nHour));
    rBuffer.append( ':');
    if (nMinute < 10)
        rBuffer.append( '0');
    rBuffer.append( sal_Int32( nMinute));
    rBuffer.append( ':');
    if (nSecond < 10)
        rBuffer.append( '0');
    rBuffer.append( sal_Int32( nSecond));
    if (!nFractionDecimals)
        return;

    // nFractionDecimals+1 to not round up what GetClock() carefully
    // truncated.
    OUString aFraction( ::rtl::math::doubleToUString( fFractionOfSecond,
                rtl_math_StringFormat_F,
                nFractionDecimals + 1, '.', true));
    const sal_Int32 nLen = aFraction.getLength();
    if ( nLen > 2 )
    {
        // Truncate nFractionDecimals+1 digit if it was not rounded to zero.
        const sal_Int32 nCount = nLen - 2 - static_cast<int>(nLen > nFractionDecimals + 2);
        rBuffer.append( '.');
        rBuffer.append( std::u16string_view(aFraction).substr(2, nCount));     // strip 0.
    }
}

template<typename V>
static bool lcl_convertDateTime( double& fDateTime,
                            V rString, const css::util::Date& aTempNullDate)
{
    css::util::DateTime aDateTime;
    bool bSuccess = ::sax::Converter::parseDateTime(aDateTime, rString);

    if (bSuccess)
    {
        const Date aTmpNullDate(aTempNullDate.Day, aTempNullDate.Month, aTempNullDate.Year);
        const Date aTempDate(aDateTime.Day, aDateTime.Month, aDateTime.Year);
        const sal_Int32 nTage = aTempDate - aTmpNullDate;
        double fTempDateTime = nTage;
        double Hour = aDateTime.Hours;
        double Min = aDateTime.Minutes;
        double Sec = aDateTime.Seconds;
        double NanoSec = aDateTime.NanoSeconds;
        fTempDateTime += Hour    / ::tools::Time::hourPerDay;
        fTempDateTime += Min     / ::tools::Time::minutePerDay;
        fTempDateTime += Sec     / ::tools::Time::secondPerDay;
        fTempDateTime += NanoSec / ::tools::Time::nanoSecPerDay;
        fDateTime = fTempDateTime;
    }
    return bSuccess;
}

bool SvXMLUnitConverter::convertDateTime( double& fDateTime,
                            std::u16string_view rString, const css::util::Date& aTempNullDate)
{
    return lcl_convertDateTime(fDateTime, rString, aTempNullDate);
}
bool SvXMLUnitConverter::convertDateTime( double& fDateTime,
                            std::string_view rString, const css::util::Date& aTempNullDate)
{
    return lcl_convertDateTime(fDateTime, rString, aTempNullDate);
}


SvXMLTokenEnumerator::SvXMLTokenEnumerator( std::u16string_view rString, sal_Unicode cSeparator /* = ' ' */ )
: maTokenString( rString ), mnNextTokenPos(0), mcSeparator( cSeparator )
{
}

bool SvXMLTokenEnumerator::getNextToken( std::u16string_view& rToken )
{
    if( std::u16string_view::npos == mnNextTokenPos )
        return false;

    size_t nTokenEndPos = maTokenString.find( mcSeparator, mnNextTokenPos );
    if( nTokenEndPos != std::u16string_view::npos )
    {
        rToken = maTokenString.substr( mnNextTokenPos,
                                     nTokenEndPos - mnNextTokenPos );
        mnNextTokenPos = nTokenEndPos + 1;

        // if the mnNextTokenPos is at the end of the string, we have
        // to deliver an empty token
        if( mnNextTokenPos > maTokenString.size() )
            mnNextTokenPos = std::u16string_view::npos;
    }
    else
    {
        rToken = maTokenString.substr( mnNextTokenPos );
        mnNextTokenPos = std::u16string_view::npos;
    }

    return true;
}

static bool lcl_getPositions(std::u16string_view _sValue, OUString& _rContentX, OUString& _rContentY, OUString& _rContentZ)
{
    if(_sValue.empty() || _sValue[0] != '(')
        return false;

    size_t nPos(1);
    size_t nFound = _sValue.find(' ', nPos);

    if(nFound == std::u16string_view::npos || nFound <= nPos)
        return false;

    _rContentX = _sValue.substr(nPos, nFound - nPos);

    nPos = nFound + 1;
    nFound = _sValue.find(' ', nPos);

    if(nFound == std::u16string_view::npos || nFound <= nPos)
        return false;

    _rContentY = _sValue.substr(nPos, nFound - nPos);

    nPos = nFound + 1;
    nFound = _sValue.find(')', nPos);

    if(nFound == std::u16string_view::npos || nFound <= nPos)
        return false;

    _rContentZ = _sValue.substr(nPos, nFound - nPos);
    return true;
}

static bool lcl_getPositions(std::string_view _sValue,OUString& _rContentX,OUString& _rContentY,OUString& _rContentZ)
{
    if(_sValue.empty() || _sValue[0] != '(')
        return false;

    size_t nPos(1);
    size_t nFound = _sValue.find(' ', nPos);

    if(nFound == std::string_view::npos || nFound <= nPos)
        return false;

    _rContentX = OUString::fromUtf8(_sValue.substr(nPos, nFound - nPos));

    nPos = nFound + 1;
    nFound = _sValue.find(' ', nPos);

    if(nFound == std::string_view::npos || nFound <= nPos)
        return false;

    _rContentY = OUString::fromUtf8(_sValue.substr(nPos, nFound - nPos));

    nPos = nFound + 1;
    nFound = _sValue.find(')', nPos);

    if(nFound == std::string_view::npos || nFound <= nPos)
        return false;

    _rContentZ = OUString::fromUtf8(_sValue.substr(nPos, nFound - nPos));
    return true;

}

bool SvXMLUnitConverter::convertB3DVector( ::basegfx::B3DVector& rVector, std::u16string_view rValue )
{
    OUString aContentX,aContentY,aContentZ;
    if ( !lcl_getPositions(rValue,aContentX,aContentY,aContentZ) )
        return false;

    rtl_math_ConversionStatus eStatus;

    rVector.setX(::rtl::math::stringToDouble(aContentX, '.',
            ',', &eStatus));

    if( eStatus != rtl_math_ConversionStatus_Ok )
        return false;

    rVector.setY(::rtl::math::stringToDouble(aContentY, '.',
            ',', &eStatus));

    if( eStatus != rtl_math_ConversionStatus_Ok )
        return false;

    rVector.setZ(::rtl::math::stringToDouble(aContentZ, '.',
            ',', &eStatus));


    return ( eStatus == rtl_math_ConversionStatus_Ok );
}

bool SvXMLUnitConverter::convertB3DVector( ::basegfx::B3DVector& rVector, std::string_view rValue )
{
    OUString aContentX,aContentY,aContentZ;
    if ( !lcl_getPositions(rValue,aContentX,aContentY,aContentZ) )
        return false;

    rtl_math_ConversionStatus eStatus;

    rVector.setX(::rtl::math::stringToDouble(aContentX, '.',
            ',', &eStatus));

    if( eStatus != rtl_math_ConversionStatus_Ok )
        return false;

    rVector.setY(::rtl::math::stringToDouble(aContentY, '.',
            ',', &eStatus));

    if( eStatus != rtl_math_ConversionStatus_Ok )
        return false;

    rVector.setZ(::rtl::math::stringToDouble(aContentZ, '.',
            ',', &eStatus));


    return ( eStatus == rtl_math_ConversionStatus_Ok );
}

void SvXMLUnitConverter::convertB3DVector( OUStringBuffer &rBuffer, const ::basegfx::B3DVector& rVector )
{
    rBuffer.append('(');
    ::sax::Converter::convertDouble(rBuffer, rVector.getX());
    rBuffer.append(' ');
    ::sax::Converter::convertDouble(rBuffer, rVector.getY());
    rBuffer.append(' ');
    ::sax::Converter::convertDouble(rBuffer, rVector.getZ());
    rBuffer.append(')');
}

bool SvXMLUnitConverter::convertPosition3D( drawing::Position3D& rPosition,
    std::string_view rValue )
{
    OUString aContentX,aContentY,aContentZ;
    if ( !lcl_getPositions(rValue,aContentX,aContentY,aContentZ) )
        return false;

    if ( !convertDouble( rPosition.PositionX, aContentX ) )
        return false;
    if ( !convertDouble( rPosition.PositionY, aContentY ) )
        return false;
    return convertDouble( rPosition.PositionZ, aContentZ );
}

void SvXMLUnitConverter::convertPosition3D( OUStringBuffer &rBuffer,
                                           const drawing::Position3D& rPosition )
{
    rBuffer.append( '(' );
    convertDouble( rBuffer, rPosition.PositionX );
    rBuffer.append( ' ' );
    convertDouble( rBuffer, rPosition.PositionY );
    rBuffer.append( ' ' );
    convertDouble( rBuffer, rPosition.PositionZ );
    rBuffer.append( ')' );
}

bool SvXMLUnitConverter::convertNumFormat(
        sal_Int16& rType,
        const OUString& rNumFmt,
        std::u16string_view rNumLetterSync,
        bool bNumberNone ) const
{
    bool bRet = true;
    bool bExt = false;

    sal_Int32 nLen = rNumFmt.getLength();
    if( 0 == nLen )
    {
        if( bNumberNone )
            rType = NumberingType::NUMBER_NONE;
        else
            bRet = false;
    }
    else if( 1 == nLen )
    {
        switch( rNumFmt[0] )
        {
        case '1':  rType = NumberingType::ARABIC;          break;
        case 'a':  rType = NumberingType::CHARS_LOWER_LETTER;  break;
        case 'A':  rType = NumberingType::CHARS_UPPER_LETTER;  break;
        case 'i':  rType = NumberingType::ROMAN_LOWER; break;
        case 'I':  rType = NumberingType::ROMAN_UPPER; break;
        default:                bExt = true; break;
        }
        if( !bExt && IsXMLToken( rNumLetterSync, XML_TRUE ) )
        {
            switch( rType )
            {
            case NumberingType::CHARS_LOWER_LETTER:
                rType = NumberingType::CHARS_LOWER_LETTER_N;
                break;
            case NumberingType::CHARS_UPPER_LETTER:
                rType = NumberingType::CHARS_UPPER_LETTER_N;
                break;
            }
        }
    }
    else
    {
        bExt = true;
    }
    if( bExt )
    {
        Reference < XNumberingTypeInfo > xInfo = getNumTypeInfo();
        if( xInfo.is() && xInfo->hasNumberingType( rNumFmt ) )
        {
            rType = xInfo->getNumberingType( rNumFmt );
        }
        else
        {
            rType = NumberingType::ARABIC;
        }
    }

    return bRet;
}

void SvXMLUnitConverter::convertNumFormat( OUStringBuffer& rBuffer,
                           sal_Int16 nType ) const
{
    enum XMLTokenEnum eFormat = XML_TOKEN_INVALID;
    switch( nType )
    {
    case NumberingType::CHARS_UPPER_LETTER:     eFormat = XML_A_UPCASE; break;
    case NumberingType::CHARS_LOWER_LETTER:     eFormat = XML_A; break;
    case NumberingType::ROMAN_UPPER:            eFormat = XML_I_UPCASE; break;
    case NumberingType::ROMAN_LOWER:            eFormat = XML_I; break;
    case NumberingType::ARABIC:                 eFormat = XML_1; break;
    case NumberingType::CHARS_UPPER_LETTER_N:   eFormat = XML_A_UPCASE; break;
    case NumberingType::CHARS_LOWER_LETTER_N:   eFormat = XML_A; break;
    case NumberingType::NUMBER_NONE:            eFormat = XML__EMPTY; break;

    case NumberingType::CHAR_SPECIAL:
    case NumberingType::PAGE_DESCRIPTOR:
    case NumberingType::BITMAP:
        SAL_WARN_IF( eFormat == XML_TOKEN_INVALID, "xmloff", "invalid number format" );
        break;
    default:
        break;
    }

    if( eFormat != XML_TOKEN_INVALID )
    {
        rBuffer.append( GetXMLToken(eFormat) );
    }
    else
    {
        Reference < XNumberingTypeInfo > xInfo = getNumTypeInfo();
        if( xInfo.is() )
            rBuffer.append( xInfo->getNumberingIdentifier( nType ) );
    }
}

void SvXMLUnitConverter::convertNumLetterSync( OUStringBuffer& rBuffer,
                               sal_Int16 nType )
{
    enum XMLTokenEnum eSync = XML_TOKEN_INVALID;
    switch( nType )
    {
    case NumberingType::CHARS_UPPER_LETTER:
    case NumberingType::CHARS_LOWER_LETTER:
    case NumberingType::ROMAN_UPPER:
    case NumberingType::ROMAN_LOWER:
    case NumberingType::ARABIC:
    case NumberingType::NUMBER_NONE:
        break;

    case NumberingType::CHARS_UPPER_LETTER_N:
    case NumberingType::CHARS_LOWER_LETTER_N:
        eSync = XML_TRUE;
        break;

    case NumberingType::CHAR_SPECIAL:
    case NumberingType::PAGE_DESCRIPTOR:
    case NumberingType::BITMAP:
        SAL_WARN_IF( eSync == XML_TOKEN_INVALID, "xmloff", "invalid number format" );
        break;
    }
    if( eSync != XML_TOKEN_INVALID )
        rBuffer.append( GetXMLToken(eSync) );
}

void SvXMLUnitConverter::convertPropertySet(uno::Sequence<beans::PropertyValue>& rProps,
                    const uno::Reference<beans::XPropertySet>& aProperties)
{
    uno::Reference< beans::XPropertySetInfo > xPropertySetInfo = aProperties->getPropertySetInfo();
    if (!xPropertySetInfo.is())
        return;

    const uno::Sequence< beans::Property > aProps = xPropertySetInfo->getProperties();
    if (aProps.hasElements())
    {
        rProps.realloc(aProps.getLength());
        beans::PropertyValue* pProps = rProps.getArray();
        for (const auto& rProp : aProps)
        {
            pProps->Name = rProp.Name;
            pProps->Value = aProperties->getPropertyValue(rProp.Name);
            ++pProps;
        }
    }
}

void SvXMLUnitConverter::convertPropertySet(uno::Reference<beans::XPropertySet> const & rProperties,
                    const uno::Sequence<beans::PropertyValue>& aProps)
{
    if (aProps.hasElements())
    {
        uno::Reference< beans::XPropertySetInfo > xPropertySetInfo = rProperties->getPropertySetInfo();
        if (xPropertySetInfo.is())
        {
            for (const auto& rProp : aProps)
            {
                if (xPropertySetInfo->hasPropertyByName(rProp.Name))
                    rProperties->setPropertyValue(rProp.Name, rProp.Value);
            }
        }
    }
}


OUString SvXMLUnitConverter::encodeStyleName(
        const OUString& rName,
        bool *pEncoded ) const
{
    if( pEncoded )
        *pEncoded = false;

    sal_Int32 nLen = rName.getLength();
    OUStringBuffer aBuffer( nLen*2 );

    for( sal_Int32 i = 0; i < nLen; i++ )
    {
        sal_Unicode c = rName[i];
        bool bValidChar = false;
        if( c < 0x00ffU )
        {
            bValidChar =
                (c >= 0x0041 && c <= 0x005a) ||
                (c >= 0x0061 && c <= 0x007a) ||
                (c >= 0x00c0 && c <= 0x00d6) ||
                (c >= 0x00d8 && c <= 0x00f6) ||
                (c >= 0x00f8 && c <= 0x00ff) ||
                ( i > 0 && ( (c >= 0x0030 && c <= 0x0039) ||
                             c == 0x00b7 || c == '-' || c == '.') );
        }
        else
        {
            if( (c >= 0xf900U && c <= 0xfffeU) ||
                 (c >= 0x20ddU && c <= 0x20e0U))
            {
                bValidChar = false;
            }
            else if( (c >= 0x02bbU && c <= 0x02c1U) || c == 0x0559 ||
                     c == 0x06e5 || c == 0x06e6 )
            {
                bValidChar = true;
            }
            else if( c == 0x0387 )
            {
                bValidChar = i > 0;
            }
            else
            {
                if (!m_pImpl->m_xCharClass.is())
                {
                    m_pImpl->m_xCharClass = CharacterClassification::create( m_pImpl->m_xContext );
                }
                sal_Int16 nType = m_pImpl->m_xCharClass->getType(rName, i);

                switch( nType )
                {
                case UnicodeType::UPPERCASE_LETTER:     // Lu
                case UnicodeType::LOWERCASE_LETTER:     // Ll
                case UnicodeType::TITLECASE_LETTER:     // Lt
                case UnicodeType::OTHER_LETTER:         // Lo
                case UnicodeType::LETTER_NUMBER:        // Nl
                    bValidChar = true;
                    break;
                case UnicodeType::NON_SPACING_MARK:     // Ms
                case UnicodeType::ENCLOSING_MARK:       // Me
                case UnicodeType::COMBINING_SPACING_MARK:   //Mc
                case UnicodeType::MODIFIER_LETTER:      // Lm
                case UnicodeType::DECIMAL_DIGIT_NUMBER: // Nd
                    bValidChar = i > 0;
                    break;
                }
            }
        }
        if( bValidChar )
        {
            aBuffer.append( c );
        }
        else
        {
            aBuffer.append( '_' );
            if( c > 0x0fff )
                aBuffer.append( static_cast< sal_Unicode >(
                            aHexTab[ (c >> 12) & 0x0f ]  ) );
            if( c > 0x00ff )
                aBuffer.append( static_cast< sal_Unicode >(
                        aHexTab[ (c >> 8) & 0x0f ] ) );
            if( c > 0x000f )
                aBuffer.append( static_cast< sal_Unicode >(
                        aHexTab[ (c >> 4) & 0x0f ] ) );
            aBuffer.append( static_cast< sal_Unicode >(
                        aHexTab[ c & 0x0f ] ) );
            aBuffer.append( '_' );
            if( pEncoded )
                *pEncoded = true;
        }
    }

    // check for length
    if( aBuffer.getLength() > ((1<<15)-1) )
    {
        aBuffer = rName;
        if( pEncoded )
            *pEncoded = false;
    }


    return aBuffer.makeStringAndClear();
}

bool SvXMLUnitConverter::convertHex( sal_uInt32& nVal, std::u16string_view rValue )
{
    if( rValue.size() != 8 )
        return false;

    nVal = 0;
    for ( int i = 0; i < 8; i++ )
    {
        nVal = ( nVal << 4 )
            | sal::static_int_cast< sal_uInt32 >( lcl_gethex( rValue[i] ) );
    }

    return true;
}

void SvXMLUnitConverter::convertHex( OUStringBuffer& rBuffer,
                                        sal_uInt32 nVal )
{
    for ( int i = 0; i < 8; i++ )
    {
        rBuffer.append( sal_Unicode( aHexTab[ nVal >> 28 ] ) );
        nVal <<= 4;
    }
}

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