| 659 | } |
| 660 | |
| 661 | uint32_t IfcLoader::GetNoLineArguments(uint32_t expressID) const |
| 662 | { |
| 663 | const auto lineIt = _lines.find(expressID); |
| 664 | if (lineIt == _lines.end()) return 0; |
| 665 | _tokenStream->MoveTo(lineIt->second->tapeOffset); |
| 666 | _tokenStream->Read<char>(); |
| 667 | _tokenStream->Read<uint32_t>(); |
| 668 | _tokenStream->Read<char>(); |
| 669 | uint16_t length = _tokenStream->Read<uint16_t>(); |
| 670 | _tokenStream->Forward(length); |
| 671 | _tokenStream->Read<char>(); |
| 672 | uint32_t noArguments = 0; |
| 673 | |
| 674 | while (true) { |
| 675 | IfcTokenType t = static_cast<IfcTokenType>(_tokenStream->Read<char>()); |
| 676 | if (t == SET_END || t==LINE_END) return noArguments; |
| 677 | if (t == UNKNOWN || t==EMPTY) { |
| 678 | noArguments++; |
| 679 | continue; |
| 680 | } |
| 681 | if (t==SET_BEGIN) { |
| 682 | StepBack(); |
| 683 | GetSetArgument(); |
| 684 | noArguments++; |
| 685 | continue; |
| 686 | |
| 687 | } |
| 688 | if (t == IfcTokenType::STRING || t == IfcTokenType::INTEGER || t == IfcTokenType::REAL || t == IfcTokenType::LABEL || t == IfcTokenType::ENUM) { |
| 689 | uint16_t length = _tokenStream->Read<uint16_t>(); |
| 690 | _tokenStream->Forward(length); |
| 691 | noArguments++; |
| 692 | if (t==IfcTokenType::LABEL) GetSetArgument(); |
| 693 | continue; |
| 694 | } |
| 695 | if (t == REF) { |
| 696 | _tokenStream->Read<uint32_t>(); |
| 697 | noArguments++; |
| 698 | continue; |
| 699 | } |
| 700 | } |
| 701 | return noArguments; |
| 702 | } |
| 703 | |
| 704 | |
| 705 | void IfcLoader::MoveToArgumentOffset(const uint32_t expressID, const uint32_t argumentIndex) const |