starmath: Prefix member of SmOoxmlImport

Change-Id: I63c87c462ab8ba23d5d1758be2eb1c76ecb6467b
Reviewed-on: https://gerrit.libreoffice.org/36356
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Takeshi Abe <tabe@fixedpoint.jp>
diff --git a/starmath/source/ooxmlimport.cxx b/starmath/source/ooxmlimport.cxx
index da29c93..8d5c3ed 100644
--- a/starmath/source/ooxmlimport.cxx
+++ b/starmath/source/ooxmlimport.cxx
@@ -30,7 +30,7 @@ The primary internal data structure for the formula is the text representation
// TODO create IS_OPENING(), IS_CLOSING() instead of doing 'next == OPENING( next )' ?

SmOoxmlImport::SmOoxmlImport( oox::formulaimport::XmlStream& s )
: stream( s )
    : m_rStream( s )
{
}

@@ -45,9 +45,9 @@ OUString SmOoxmlImport::ConvertToStarMath()
// NOT complete
OUString SmOoxmlImport::handleStream()
{
    stream.ensureOpeningTag( M_TOKEN( oMath ));
    m_rStream.ensureOpeningTag( M_TOKEN( oMath ));
    OUString ret;
    while( !stream.atEnd() && stream.currentToken() != CLOSING( M_TOKEN( oMath )))
    while( !m_rStream.atEnd() && m_rStream.currentToken() != CLOSING( M_TOKEN( oMath )))
    {
        // strictly speaking, it is not OMathArg here, but currently supported
        // functionality is the same like OMathArg, in the future this may need improving
@@ -58,7 +58,7 @@ OUString SmOoxmlImport::handleStream()
            ret += " ";
        ret += item;
    }
    stream.ensureClosingTag( M_TOKEN( oMath ));
    m_rStream.ensureClosingTag( M_TOKEN( oMath ));
    // Placeholders are written out as nothing (i.e. nothing inside e.g. the <e> element),
    // which will result in "{}" in the formula text. Fix this up.
    ret = ret.replaceAll( "{}", "<?>" );
@@ -72,11 +72,11 @@ OUString SmOoxmlImport::handleStream()
OUString SmOoxmlImport::readOMathArg( int stoptoken )
{
    OUString ret;
    while( !stream.atEnd() && stream.currentToken() != CLOSING( stoptoken ))
    while( !m_rStream.atEnd() && m_rStream.currentToken() != CLOSING( stoptoken ))
    {
        if( !ret.isEmpty())
            ret += " ";
        switch( stream.currentToken())
        switch( m_rStream.currentToken())
        {
            case OPENING( M_TOKEN( acc )):
                ret += handleAcc();
@@ -136,7 +136,7 @@ OUString SmOoxmlImport::readOMathArg( int stoptoken )
                ret += handleSsup();
                break;
            default:
                stream.handleUnexpectedTag();
                m_rStream.handleUnexpectedTag();
                break;
        }
    }
@@ -145,24 +145,24 @@ OUString SmOoxmlImport::readOMathArg( int stoptoken )

OUString SmOoxmlImport::readOMathArgInElement( int token )
{
    stream.ensureOpeningTag( token );
    m_rStream.ensureOpeningTag( token );
    OUString ret = readOMathArg( token );
    stream.ensureClosingTag( token );
    m_rStream.ensureClosingTag( token );
    return ret;
}

OUString SmOoxmlImport::handleAcc()
{
    stream.ensureOpeningTag( M_TOKEN( acc ));
    m_rStream.ensureOpeningTag( M_TOKEN( acc ));
    sal_Unicode accChr = 0x302;
    if( XmlStream::Tag accPr = stream.checkOpeningTag( M_TOKEN( accPr )))
    if( XmlStream::Tag accPr = m_rStream.checkOpeningTag( M_TOKEN( accPr )))
    {
        if( XmlStream::Tag chr = stream.checkOpeningTag( M_TOKEN( chr )))
        if( XmlStream::Tag chr = m_rStream.checkOpeningTag( M_TOKEN( chr )))
        {
            accChr = chr.attribute( M_TOKEN( val ), accChr );
            stream.ensureClosingTag( M_TOKEN( chr ));
            m_rStream.ensureClosingTag( M_TOKEN( chr ));
        }
        stream.ensureClosingTag( M_TOKEN( accPr ));
        m_rStream.ensureClosingTag( M_TOKEN( accPr ));
    }
    // see aTokenTable in parse.cxx
    OUString acc;
@@ -222,28 +222,28 @@ OUString SmOoxmlImport::handleAcc()
            break;
    }
    OUString e = readOMathArgInElement( M_TOKEN( e ));
    stream.ensureClosingTag( M_TOKEN( acc ));
    m_rStream.ensureClosingTag( M_TOKEN( acc ));
    return acc + " {" + e + "}";
}

OUString SmOoxmlImport::handleBar()
{
    stream.ensureOpeningTag( M_TOKEN( bar ));
    m_rStream.ensureOpeningTag( M_TOKEN( bar ));
    enum pos_t { top, bot } topbot = bot;
    if( stream.checkOpeningTag( M_TOKEN( barPr )))
    if( m_rStream.checkOpeningTag( M_TOKEN( barPr )))
    {
        if( XmlStream::Tag pos = stream.checkOpeningTag( M_TOKEN( pos )))
        if( XmlStream::Tag pos = m_rStream.checkOpeningTag( M_TOKEN( pos )))
        {
            if( pos.attribute( M_TOKEN( val )) == "top" )
                topbot = top;
            else if( pos.attribute( M_TOKEN( val )) == "bot" )
                topbot = bot;
            stream.ensureClosingTag( M_TOKEN( pos ));
            m_rStream.ensureClosingTag( M_TOKEN( pos ));
        }
        stream.ensureClosingTag( M_TOKEN( barPr ));
        m_rStream.ensureClosingTag( M_TOKEN( barPr ));
    }
    OUString e = readOMathArgInElement( M_TOKEN( e ));
    stream.ensureClosingTag( M_TOKEN( bar ));
    m_rStream.ensureClosingTag( M_TOKEN( bar ));
    if( topbot == top )
        return "overline {" + e + "}";
    else
@@ -254,29 +254,29 @@ OUString SmOoxmlImport::handleBox()
{
    // there does not seem to be functionality in LO to actually implement this
    // (or is there), but at least read in the contents instead of ignoring them
    stream.ensureOpeningTag( M_TOKEN( box ));
    m_rStream.ensureOpeningTag( M_TOKEN( box ));
    OUString e = readOMathArgInElement( M_TOKEN( e ));
    stream.ensureClosingTag( M_TOKEN( box ));
    m_rStream.ensureClosingTag( M_TOKEN( box ));
    return e;
}


OUString SmOoxmlImport::handleBorderBox()
{
    stream.ensureOpeningTag( M_TOKEN( borderBox ));
    m_rStream.ensureOpeningTag( M_TOKEN( borderBox ));
    bool isStrikeH = false;
    if( stream.checkOpeningTag( M_TOKEN( borderBoxPr )))
    if( m_rStream.checkOpeningTag( M_TOKEN( borderBoxPr )))
    {
        if( XmlStream::Tag strikeH = stream.checkOpeningTag( M_TOKEN( strikeH )))
        if( XmlStream::Tag strikeH = m_rStream.checkOpeningTag( M_TOKEN( strikeH )))
        {
            if( strikeH.attribute( M_TOKEN( val ), false ))
                isStrikeH = true;
            stream.ensureClosingTag( M_TOKEN( strikeH ));
            m_rStream.ensureClosingTag( M_TOKEN( strikeH ));
        }
        stream.ensureClosingTag( M_TOKEN( borderBoxPr ));
        m_rStream.ensureClosingTag( M_TOKEN( borderBoxPr ));
    }
    OUString e = readOMathArgInElement( M_TOKEN( e ));
    stream.ensureClosingTag( M_TOKEN( borderBox ));
    m_rStream.ensureClosingTag( M_TOKEN( borderBox ));
    if( isStrikeH )
        return "overstrike {" + e + "}";
    // LO does not seem to implement anything for handling the other cases
@@ -285,28 +285,28 @@ OUString SmOoxmlImport::handleBorderBox()

OUString SmOoxmlImport::handleD()
{
    stream.ensureOpeningTag( M_TOKEN( d ));
    m_rStream.ensureOpeningTag( M_TOKEN( d ));
    OUString opening = "(";
    OUString closing = ")";
    OUString separator = "|";
    if( XmlStream::Tag dPr = stream.checkOpeningTag( M_TOKEN( dPr )))
    if( XmlStream::Tag dPr = m_rStream.checkOpeningTag( M_TOKEN( dPr )))
    {
        if( XmlStream::Tag begChr = stream.checkOpeningTag( M_TOKEN( begChr )))
        if( XmlStream::Tag begChr = m_rStream.checkOpeningTag( M_TOKEN( begChr )))
        {
            opening = begChr.attribute( M_TOKEN( val ), opening );
            stream.ensureClosingTag( M_TOKEN( begChr ));
            m_rStream.ensureClosingTag( M_TOKEN( begChr ));
        }
        if( XmlStream::Tag sepChr = stream.checkOpeningTag( M_TOKEN( sepChr )))
        if( XmlStream::Tag sepChr = m_rStream.checkOpeningTag( M_TOKEN( sepChr )))
        {
            separator = sepChr.attribute( M_TOKEN( val ), separator );
            stream.ensureClosingTag( M_TOKEN( sepChr ));
            m_rStream.ensureClosingTag( M_TOKEN( sepChr ));
        }
        if( XmlStream::Tag endChr = stream.checkOpeningTag( M_TOKEN( endChr )))
        if( XmlStream::Tag endChr = m_rStream.checkOpeningTag( M_TOKEN( endChr )))
        {
            closing = endChr.attribute( M_TOKEN( val ), closing );
            stream.ensureClosingTag( M_TOKEN( endChr ));
            m_rStream.ensureClosingTag( M_TOKEN( endChr ));
        }
        stream.ensureClosingTag( M_TOKEN( dPr ));
        m_rStream.ensureClosingTag( M_TOKEN( dPr ));
    }
    if( opening == "{" )
        opening = "left lbrace ";
@@ -346,7 +346,7 @@ OUString SmOoxmlImport::handleD()
    OUStringBuffer ret;
    ret.append( opening );
    bool first = true;
    while( stream.findTag( OPENING( M_TOKEN( e ))))
    while( m_rStream.findTag( OPENING( M_TOKEN( e ))))
    {
        if( !first )
            ret.append( separator );
@@ -354,13 +354,13 @@ OUString SmOoxmlImport::handleD()
        ret.append( readOMathArgInElement( M_TOKEN( e )));
    }
    ret.append( closing );
    stream.ensureClosingTag( M_TOKEN( d ));
    m_rStream.ensureClosingTag( M_TOKEN( d ));
    return ret.makeStringAndClear();
}

OUString SmOoxmlImport::handleEqArr()
{
    stream.ensureOpeningTag( M_TOKEN( eqArr ));
    m_rStream.ensureOpeningTag( M_TOKEN( eqArr ));
    OUString ret;
    do
    { // there must be at least one m:e
@@ -369,18 +369,18 @@ OUString SmOoxmlImport::handleEqArr()
        ret += " ";
        ret += readOMathArgInElement( M_TOKEN( e ));
        ret += " ";
    } while( !stream.atEnd() && stream.findTag( OPENING( M_TOKEN( e ))));
    stream.ensureClosingTag( M_TOKEN( eqArr ));
    } while( !m_rStream.atEnd() && m_rStream.findTag( OPENING( M_TOKEN( e ))));
    m_rStream.ensureClosingTag( M_TOKEN( eqArr ));
    return "stack {" + ret + "}";
}

OUString SmOoxmlImport::handleF()
{
    stream.ensureOpeningTag( M_TOKEN( f ));
    m_rStream.ensureOpeningTag( M_TOKEN( f ));
    enum operation_t { bar, lin, noBar } operation = bar;
    if( stream.checkOpeningTag( M_TOKEN( fPr )))
    if( m_rStream.checkOpeningTag( M_TOKEN( fPr )))
    {
        if( XmlStream::Tag type = stream.checkOpeningTag( M_TOKEN( type )))
        if( XmlStream::Tag type = m_rStream.checkOpeningTag( M_TOKEN( type )))
        {
            if( type.attribute( M_TOKEN( val )) == "bar" )
                operation = bar;
@@ -388,13 +388,13 @@ OUString SmOoxmlImport::handleF()
                operation = lin;
            else if( type.attribute( M_TOKEN( val )) == "noBar" )
                operation = noBar;
            stream.ensureClosingTag( M_TOKEN( type ));
            m_rStream.ensureClosingTag( M_TOKEN( type ));
        }
        stream.ensureClosingTag( M_TOKEN( fPr ));
        m_rStream.ensureClosingTag( M_TOKEN( fPr ));
    }
    OUString num = readOMathArgInElement( M_TOKEN( num ));
    OUString den = readOMathArgInElement( M_TOKEN( den ));
    stream.ensureClosingTag( M_TOKEN( f ));
    m_rStream.ensureClosingTag( M_TOKEN( f ));
    if( operation == bar )
        return "{" + num + "} over {" + den + "}";
    else if( operation == lin )
@@ -408,23 +408,23 @@ OUString SmOoxmlImport::handleF()
OUString SmOoxmlImport::handleFunc()
{
//lim from{x rightarrow 1} x
    stream.ensureOpeningTag( M_TOKEN( func ));
    m_rStream.ensureOpeningTag( M_TOKEN( func ));
    OUString fname = readOMathArgInElement( M_TOKEN( fName ));
    // fix the various functions
    if( fname.startsWith( "lim csub {" ))
        fname = "lim from {" + fname.copy( 10 );
    OUString ret = fname + " {" + readOMathArgInElement( M_TOKEN( e )) + "}";
    stream.ensureClosingTag( M_TOKEN( func ));
    m_rStream.ensureClosingTag( M_TOKEN( func ));
    return ret;
}

OUString SmOoxmlImport::handleLimLowUpp( LimLowUpp_t limlowupp )
{
    int token = limlowupp == LimLow ? M_TOKEN( limLow ) : M_TOKEN( limUpp );
    stream.ensureOpeningTag( token );
    m_rStream.ensureOpeningTag( token );
    OUString e = readOMathArgInElement( M_TOKEN( e ));
    OUString lim = readOMathArgInElement( M_TOKEN( lim ));
    stream.ensureClosingTag( token );
    m_rStream.ensureClosingTag( token );
    // fix up overbrace/underbrace  (use { }, as {} will be converted to a placeholder)
    if( limlowupp == LimUpp && e.endsWith( " overbrace { }" ))
        return e.copy( 0, e.getLength() - 2 ) + lim + "}";
@@ -437,26 +437,26 @@ OUString SmOoxmlImport::handleLimLowUpp( LimLowUpp_t limlowupp )

OUString SmOoxmlImport::handleGroupChr()
{
    stream.ensureOpeningTag( M_TOKEN( groupChr ));
    m_rStream.ensureOpeningTag( M_TOKEN( groupChr ));
    sal_Unicode chr = 0x23df;
    enum pos_t { top, bot } pos = bot;
    if( stream.checkOpeningTag( M_TOKEN( groupChrPr )))
    if( m_rStream.checkOpeningTag( M_TOKEN( groupChrPr )))
    {
        if( XmlStream::Tag chrTag = stream.checkOpeningTag( M_TOKEN( chr )))
        if( XmlStream::Tag chrTag = m_rStream.checkOpeningTag( M_TOKEN( chr )))
        {
            chr = chrTag.attribute( M_TOKEN( val ), chr );
            stream.ensureClosingTag( M_TOKEN( chr ));
            m_rStream.ensureClosingTag( M_TOKEN( chr ));
        }
        if( XmlStream::Tag posTag = stream.checkOpeningTag( M_TOKEN( pos )))
        if( XmlStream::Tag posTag = m_rStream.checkOpeningTag( M_TOKEN( pos )))
        {
            if( posTag.attribute( M_TOKEN( val ), OUString( "bot" )) == "top" )
                pos = top;
            stream.ensureClosingTag( M_TOKEN( pos ));
            m_rStream.ensureClosingTag( M_TOKEN( pos ));
        }
        stream.ensureClosingTag( M_TOKEN( groupChrPr ));
        m_rStream.ensureClosingTag( M_TOKEN( groupChrPr ));
    }
    OUString e = readOMathArgInElement( M_TOKEN( e ));
    stream.ensureClosingTag( M_TOKEN( groupChr ));
    m_rStream.ensureClosingTag( M_TOKEN( groupChr ));
    if( pos == top && chr == sal_Unicode( 0x23de ))
        return "{" + e + "} overbrace { }";
    if( pos == bot && chr == sal_Unicode( 0x23df ))
@@ -469,51 +469,51 @@ OUString SmOoxmlImport::handleGroupChr()

OUString SmOoxmlImport::handleM()
{
    stream.ensureOpeningTag( M_TOKEN( m ));
    m_rStream.ensureOpeningTag( M_TOKEN( m ));
    OUString allrows;
    do // there must be at least one m:mr
    {
        stream.ensureOpeningTag( M_TOKEN( mr ));
        m_rStream.ensureOpeningTag( M_TOKEN( mr ));
        OUString row;
        do // there must be at least one m:e
        {
            if( !row.isEmpty())
                row += " # ";
            row += readOMathArgInElement( M_TOKEN( e ));
        } while( !stream.atEnd() && stream.findTag( OPENING( M_TOKEN( e ))));
        } while( !m_rStream.atEnd() && m_rStream.findTag( OPENING( M_TOKEN( e ))));
        if( !allrows.isEmpty())
            allrows += " ## ";
        allrows += row;
        stream.ensureClosingTag( M_TOKEN( mr ));
    } while( !stream.atEnd() && stream.findTag( OPENING( M_TOKEN( mr ))));
    stream.ensureClosingTag( M_TOKEN( m ));
        m_rStream.ensureClosingTag( M_TOKEN( mr ));
    } while( !m_rStream.atEnd() && m_rStream.findTag( OPENING( M_TOKEN( mr ))));
    m_rStream.ensureClosingTag( M_TOKEN( m ));
    return "matrix {" + allrows + "}";
}

OUString SmOoxmlImport::handleNary()
{
    stream.ensureOpeningTag( M_TOKEN( nary ));
    m_rStream.ensureOpeningTag( M_TOKEN( nary ));
    sal_Unicode chr = 0x222b;
    bool subHide = false;
    bool supHide = false;
    if( stream.checkOpeningTag( M_TOKEN( naryPr )))
    if( m_rStream.checkOpeningTag( M_TOKEN( naryPr )))
    {
        if( XmlStream::Tag chrTag = stream.checkOpeningTag( M_TOKEN( chr )))
        if( XmlStream::Tag chrTag = m_rStream.checkOpeningTag( M_TOKEN( chr )))
        {
            chr = chrTag.attribute( M_TOKEN( val ), chr );
            stream.ensureClosingTag( M_TOKEN( chr ));
            m_rStream.ensureClosingTag( M_TOKEN( chr ));
        }
        if( XmlStream::Tag subHideTag = stream.checkOpeningTag( M_TOKEN( subHide )))
        if( XmlStream::Tag subHideTag = m_rStream.checkOpeningTag( M_TOKEN( subHide )))
        {
            subHide = subHideTag.attribute( M_TOKEN( val ), subHide );
            stream.ensureClosingTag( M_TOKEN( subHide ));
            m_rStream.ensureClosingTag( M_TOKEN( subHide ));
        }
        if( XmlStream::Tag supHideTag = stream.checkOpeningTag( M_TOKEN( supHide )))
        if( XmlStream::Tag supHideTag = m_rStream.checkOpeningTag( M_TOKEN( supHide )))
        {
            supHide = supHideTag.attribute( M_TOKEN( val ), supHide );
            stream.ensureClosingTag( M_TOKEN( supHide ));
            m_rStream.ensureClosingTag( M_TOKEN( supHide ));
        }
        stream.ensureClosingTag( M_TOKEN( naryPr ));
        m_rStream.ensureClosingTag( M_TOKEN( naryPr ));
    }
    OUString sub = readOMathArgInElement( M_TOKEN( sub ));
    OUString sup = readOMathArgInElement( M_TOKEN( sup ));
@@ -557,51 +557,51 @@ OUString SmOoxmlImport::handleNary()
    if( !supHide )
        ret += " to {" + sup + "}";
    ret += " {" + e + "}";
    stream.ensureClosingTag( M_TOKEN( nary ));
    m_rStream.ensureClosingTag( M_TOKEN( nary ));
    return ret;
}

// NOT complete
OUString SmOoxmlImport::handleR()
{
    stream.ensureOpeningTag( M_TOKEN( r ));
    m_rStream.ensureOpeningTag( M_TOKEN( r ));
    bool normal = false;
    bool literal = false;
    if( XmlStream::Tag rPr = stream.checkOpeningTag( M_TOKEN( rPr )))
    if( XmlStream::Tag rPr = m_rStream.checkOpeningTag( M_TOKEN( rPr )))
    {
        if( XmlStream::Tag litTag = stream.checkOpeningTag( M_TOKEN( lit )))
        if( XmlStream::Tag litTag = m_rStream.checkOpeningTag( M_TOKEN( lit )))
        {
            literal = litTag.attribute( M_TOKEN( val ), true );
            stream.ensureClosingTag( M_TOKEN( lit ));
            m_rStream.ensureClosingTag( M_TOKEN( lit ));
        }
        if( XmlStream::Tag norTag = stream.checkOpeningTag( M_TOKEN( nor )))
        if( XmlStream::Tag norTag = m_rStream.checkOpeningTag( M_TOKEN( nor )))
        {
            normal = norTag.attribute( M_TOKEN( val ), true );
            stream.ensureClosingTag( M_TOKEN( nor ));
            m_rStream.ensureClosingTag( M_TOKEN( nor ));
        }
        stream.ensureClosingTag( M_TOKEN( rPr ));
        m_rStream.ensureClosingTag( M_TOKEN( rPr ));
    }
    OUString text;
    while( !stream.atEnd() && stream.currentToken() != CLOSING( stream.currentToken()))
    while( !m_rStream.atEnd() && m_rStream.currentToken() != CLOSING( m_rStream.currentToken()))
    {
        switch( stream.currentToken())
        switch( m_rStream.currentToken())
        {
            case OPENING( M_TOKEN( t )):
            {
                XmlStream::Tag rtag = stream.ensureOpeningTag( M_TOKEN( t ));
                XmlStream::Tag rtag = m_rStream.ensureOpeningTag( M_TOKEN( t ));
                if( rtag.attribute( OOX_TOKEN( xml, space )) != "preserve" )
                    text += rtag.text.trim();
                else
                    text += rtag.text;
                stream.ensureClosingTag( M_TOKEN( t ));
                m_rStream.ensureClosingTag( M_TOKEN( t ));
                break;
            }
            default:
                stream.handleUnexpectedTag();
                m_rStream.handleUnexpectedTag();
                break;
        }
    }
    stream.ensureClosingTag( M_TOKEN( r ));
    m_rStream.ensureClosingTag( M_TOKEN( r ));
    if( normal || literal )
        text = "\"" + text + "\"";
    return text.replaceAll("{", "\\{").replaceAll("}", "\\}");
@@ -609,20 +609,20 @@ OUString SmOoxmlImport::handleR()

OUString SmOoxmlImport::handleRad()
{
    stream.ensureOpeningTag( M_TOKEN( rad ));
    m_rStream.ensureOpeningTag( M_TOKEN( rad ));
    bool degHide = false;
    if( stream.checkOpeningTag( M_TOKEN( radPr )))
    if( m_rStream.checkOpeningTag( M_TOKEN( radPr )))
    {
        if( XmlStream::Tag degHideTag = stream.checkOpeningTag( M_TOKEN( degHide )))
        if( XmlStream::Tag degHideTag = m_rStream.checkOpeningTag( M_TOKEN( degHide )))
        {
            degHide = degHideTag.attribute( M_TOKEN( val ), degHide );
            stream.ensureClosingTag( M_TOKEN( degHide ));
            m_rStream.ensureClosingTag( M_TOKEN( degHide ));
        }
        stream.ensureClosingTag( M_TOKEN( radPr ));
        m_rStream.ensureClosingTag( M_TOKEN( radPr ));
    }
    OUString deg = readOMathArgInElement( M_TOKEN( deg ));
    OUString e = readOMathArgInElement( M_TOKEN( e ));
    stream.ensureClosingTag( M_TOKEN( rad ));
    m_rStream.ensureClosingTag( M_TOKEN( rad ));
    if( degHide )
        return "sqrt {" + e + "}";
    else
@@ -631,39 +631,39 @@ OUString SmOoxmlImport::handleRad()

OUString SmOoxmlImport::handleSpre()
{
    stream.ensureOpeningTag( M_TOKEN( sPre ));
    m_rStream.ensureOpeningTag( M_TOKEN( sPre ));
    OUString sub = readOMathArgInElement( M_TOKEN( sub ));
    OUString sup = readOMathArgInElement( M_TOKEN( sup ));
    OUString e = readOMathArgInElement( M_TOKEN( e ));
    stream.ensureClosingTag( M_TOKEN( sPre ));
    m_rStream.ensureClosingTag( M_TOKEN( sPre ));
    return "{" + e + "} lsub {" + sub + "} lsup {" + sup + "}";
}

OUString SmOoxmlImport::handleSsub()
{
    stream.ensureOpeningTag( M_TOKEN( sSub ));
    m_rStream.ensureOpeningTag( M_TOKEN( sSub ));
    OUString e = readOMathArgInElement( M_TOKEN( e ));
    OUString sub = readOMathArgInElement( M_TOKEN( sub ));
    stream.ensureClosingTag( M_TOKEN( sSub ));
    m_rStream.ensureClosingTag( M_TOKEN( sSub ));
    return "{" + e + "} rsub {" + sub + "}";
}

OUString SmOoxmlImport::handleSsubsup()
{
    stream.ensureOpeningTag( M_TOKEN( sSubSup ));
    m_rStream.ensureOpeningTag( M_TOKEN( sSubSup ));
    OUString e = readOMathArgInElement( M_TOKEN( e ));
    OUString sub = readOMathArgInElement( M_TOKEN( sub ));
    OUString sup = readOMathArgInElement( M_TOKEN( sup ));
    stream.ensureClosingTag( M_TOKEN( sSubSup ));
    m_rStream.ensureClosingTag( M_TOKEN( sSubSup ));
    return "{" + e + "} rsub {" + sub + "} rsup {" + sup + "}";
}

OUString SmOoxmlImport::handleSsup()
{
    stream.ensureOpeningTag( M_TOKEN( sSup ));
    m_rStream.ensureOpeningTag( M_TOKEN( sSup ));
    OUString e = readOMathArgInElement( M_TOKEN( e ));
    OUString sup = readOMathArgInElement( M_TOKEN( sup ));
    stream.ensureClosingTag( M_TOKEN( sSup ));
    m_rStream.ensureClosingTag( M_TOKEN( sSup ));
    return "{" + e + "} ^ {" + sup + "}";
}

diff --git a/starmath/source/ooxmlimport.hxx b/starmath/source/ooxmlimport.hxx
index 4207726..f9bf118 100644
--- a/starmath/source/ooxmlimport.hxx
+++ b/starmath/source/ooxmlimport.hxx
@@ -44,7 +44,8 @@ private:
    OUString handleSsup();
    OUString readOMathArg( int stoptoken );
    OUString readOMathArgInElement( int token );
    oox::formulaimport::XmlStream& stream;

    oox::formulaimport::XmlStream& m_rStream;
};

#endif