internal static DxfBlocksSection BlocksSectionFromBuffer(DxfCodePairBufferReader buffer)
{
var section = new DxfBlocksSection();
section.Clear();
while (buffer.ItemsRemain)
{
var pair = buffer.Peek();
if (DxfCodePair.IsSectionStart(pair))
{
// done reading blocks, onto the next section
break;
}
else if (DxfCodePair.IsSectionEnd(pair))
{
// done reading blocks
buffer.Advance(); // swallow (0, ENDSEC)
break;
}
if (pair.Code != 0)
{
throw new DxfReadException("Expected new block.", pair);
}
buffer.Advance(); // swallow (0, CLASS)
var block = DxfBlock.FromBuffer(buffer);
if (block != null)
{
section.Blocks.Add(block);
}
}
return(section);
}
