//read in the matrix

                int pos = buf.position();

               

               

                if ( element != null )

                {

                }

                else

                {

                    int readedBytes = buf.position() - pos;

                    int toread = tag.size - readedBytes;

     */

    private MLArray readMatrix(ByteBuffer buf, boolean isRoot ) throws IOException

    {

        //result

        ISMatTag tag;

       

        //read flags

        int[] flags = readFlags(buf);

        int attributes = ( flags.length != 0 ) ? flags[0] : 0;

        int nzmax = ( flags.length != 0 ) ? flags[1] : 0;

        int type = attributes & 0xff;

       

        //read Array dimension

        int[] dims = readDimension(buf);

       

        //read array Name

        String name = readName(buf);

       

        //if this array is filtered out return immediately

        if ( isRoot && !filter.matches(name) )

        {

            return null;

        }

       

        //read data >> consider changing it to stategy pattern

        switch ( type )

        {

            case MLArray.mxSTRUCT_CLASS:

               

                MLStructure struct = new MLStructure(name, dims, type, attributes);

               

                //field name length - this subelement always uses the compressed data element format

                tag = new ISMatTag(buf);

                int maxlen = buf.getInt(); //maximum field length

                //////  read fields data as Int8

                tag = new ISMatTag(buf);

                //calculate number of fields

                int numOfFields = tag.size/maxlen;

               

                //padding after field names

                int padding = (tag.size%8) != 0 ? 8-(tag.size%8) : 0;

                String[] fieldNames = new String[numOfFields];

                for ( int i = 0; i < numOfFields; i++ )

                {

                    byte[] names = new byte[maxlen];

                    buf.get(names);

                    fieldNames[i] = zeroEndByteArrayToString(names);

                }

                buf.position( buf.position() + padding );

                //read fields

                for ( int index = 0; index < struct.getM()*struct.getN(); index++ )

                {

                    for ( int i = 0; i < numOfFields; i++ )

                    {

                        //read matrix recursively

                        tag = new ISMatTag(buf);

                        struct.setField(fieldNames[i], fieldValue, index);

                    }

                }

                mlArray = struct;

                break;

            case MLArray.mxCELL_CLASS:

                MLCell cell = new MLCell(name, dims, type, attributes);

                for ( int i = 0; i < cell.getM()*cell.getN(); i++ )

                {

                    tag = new ISMatTag(buf);

                    //read matrix recursively

                    cell.set(cellmatrix, i);

                }

                mlArray = cell;

                break;

            case MLArray.mxDOUBLE_CLASS:

  boolean isRoot = true;

  while (varsIter.hasNext())  {  // for all .mat file variables

        String currentVariable = varsIter.next();  // get the String of the Matlab variable

            //  the value to which the read file maps the specified array name. Returns null if the file contains no content for this name.

        if (objArrayRetrived instanceof  MLDouble) {

            // public MLArray getMLArray(String name)

        // Returns the value to which the read file maps the specified array name. Returns null if the file contains no content for this name.

// Returns: - the MLArray to which this file maps the specified name, or null if the file contains no content for this name.

         MLDouble mlArrayRetrived = (MLDouble)mfr.getMLArray(currentVariable);

            xhtml.newline();

            //Loop through each variable

            for (Map.Entry<String, MLArray> entry : mfr.getContent().entrySet()) {

                String varName = entry.getKey();

                xhtml.element("p", varName + ":" + String.valueOf(varData));

                // If the variable is a structure, extract variable info from structure

                    MLStructure mlStructure = (MLStructure) mfr.getMLArray(varName);

                    xhtml.startElement("ul");

                    xhtml.newline();

                    for (MLArray element : mlStructure.getAllFields()){

                        xhtml.startElement("li");