Method PreParseFluentFile

IO/Geometry/vtkFLUENTReader.cxx:681–832

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//------------------------------------------------------------------------------
bool vtkFLUENTReader::PreParseFluentFile()
{
  this->FluentFile->clear();
  this->FluentFile->seekg(0, ios::beg);

  while (true)
  {
    auto character = this->FluentFile->get();
    if (this->FluentFile->eof())
    {
      this->UpdateZoneSectionSelection();
      return true;
    }

    // Search for new section
    if (character == '(')
    {
      auto nextChar = this->FluentFile->peek();
      if (nextChar < '1' || nextChar > '9')
      {
        // Drop line
        this->FluentFile->ignore(std::numeric_limits<std::streamsize>::max(), '\n');
        continue;
      }

      // New section found, keep position
      std::streampos pos = this->FluentFile->tellg();

      // Parse section index
      std::string index;
      while (true)
      {
        nextChar = this->FluentFile->get();
        if (this->FluentFile->eof())
        {
          this->UpdateZoneSectionSelection();
          return true;
        }
        if (nextChar == ' ')
        {
          break;
        }
        if (nextChar == '(')
        {
          this->FluentFile->unget();
          break;
        }
        index += static_cast<char>(nextChar);
      }

      unsigned int zoneId;
      VTK_FROM_CHARS_IF_ERROR_RETURN(index, zoneId, false);
      switch (zoneId)
      {
        // Indices 39 and 45 describe zone sections (such as fluid, wall, pressure-outlet,...).
        // Each zone section will be a different block in the output multiblock dataset.
        case 39:
          if (!this->ReadZoneSection(4))