BString katParseData()

in unittest/lib/kat.cpp [286:346]

• 42 lines of code
• 10 McCabe index (conditional complexity)

BString katParseData( String data, LONGLONG line )
{

    SIZE_T len = data.size();
    BString result;

    if( len > 1 && data[0] == '"' && data[len-1] == '"' )
    {
        result.assign( (BYTE *)&data[1], len-2 );
        return result;
    }

    if( data.find( "repeat" ) == 0 )
    {
        SIZE_T iOpen = data.find( '(' );

        SIZE_T iClose = data.find( ')' );
        if( iOpen + 1 >= iClose || iOpen == data.npos || iClose == data.npos )
        {

            FATAL3( "Wrong parenthesis in repeat format, line %lld = %s", line, data.c_str() )
        }

        String repeatStr = strip( data.substr( iOpen + 1, iClose ) );

        int repValue = atoi( repeatStr.c_str() );

        BString repData = katParseData( strip( data.substr( iClose+1 ) ), line );
        SIZE_T repLen = repData.size();

        PBYTE pResult = new BYTE[ repLen * repValue ];
        CHECK( pResult != NULL, "Out of memory" );

        for( int i=0; i<repValue; i++ )
        {
            memcpy( pResult + i*repLen, repData.data(), repLen );
        }

        BString result( pResult, repLen * repValue );

        delete [] pResult;

        return result;

    }

    if( (len & 1) != 0 )
    {
        FATAL2( "Hex data has odd number of characters in line %lld", line );
    }

    result.assign( len/2, 0 );

    for( SIZE_T i=0; i<len/2; i++ )
    {
        result[i] = hexToByte( &data[2*i], line );
    }

    return result;

}