//////////////////////////////////////////////////////////////////////////
#pragma mark helper functions
#pragma mark -
//////////////////////////////////////////////////////////////////////////

/**********************************************************************************************/
long ReadLong( wchar_t*& ch, const wchar_t* end )
{
    long res;

    ++ch;
    wchar_t* start = ch;

    for( ; ch < end ; ++ch )
    {
        if( *ch == '\n' )
        {
            res = wcstol( start, &ch, 10 );
            break;
        }
    }

    return res;
}

...

/**********************************************************************************************/
inline LDCPlayerItem ReadClipItem( wchar_t*& ch, const wchar_t* end )
{
    LDCPlayerItem item;
    item.type   = kPlayerItemClip;
    item.pos.x  = ReadLong( ch, end );
    item.pos.y  = ReadLong( ch, end );
    item.size.x = ReadLong( ch, end );
    item.size.y = ReadLong( ch, end );

    return item;
}

...

//////////////////////////////////////////////////////////////////////////
#pragma mark methods
#pragma mark -
//////////////////////////////////////////////////////////////////////////

/**********************************************************************************************/
void LDCPlayer::LoadData( const LString& data )
{
    mIsLoaded = true;
    mItems.Clear();

    bool      first  = true;
    wchar_t*  start  = &data[ 0 ];
    wchar_t*  end    = start + data.Len();
    long      wlen;

    // Parse string with format:
    // %LRecordDC
    // /<item_type>
    // [param1]
    // [param2]
    // ...
    // /<item_type>
    // ...
    for( wchar_t* ch = start ; ch < end ; ++ch )
    {
        if( *ch == '\n' )
        {
            if( first )
            {
                *ch   = 0;
                first = false;

                // First line must be "%LRecordDC"
                if( wcscmp( start, L"%LRecordDC" ) )
                    return;

                start = ch + 1;
                continue;
            }

            // Item description must have atleast two chars
            wlen = ch - start - 1;
            if( wlen < 1 )
                break;

            // We can optimize search for items that have unique first char
            switch( *( start + 1 ) )
            {
                // "/brush"
                case 'b': mItems += ReadBrushItem( ch, end ); break;

                // "/clip"
                case 'c': mItems += ReadClipItem( ch, end ); break;

                // "/ellipse"
                case 'e': mItems += ReadEllipseItem( ch, end ); break;

...