Method OpenVTKString

IO/XML/vtkXMLReader.cxx:366–420

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
int vtkXMLReader::OpenVTKString()
{
  if (this->StringStream)
  {
    vtkErrorMacro("string already open.");
    return 1;
  }

  if (!this->Stream && this->InputString.empty() &&
    (this->InputArray == nullptr || this->InputArray->GetNumberOfValues() == 0))
  {
    vtkErrorMacro("Input string not specified");
    return 0;
  }

  if (this->Stream)
  {
    // Use user-provided stream.
    return 1;
  }

  // Open the string stream
  if (this->InputArray)
  {
    vtkDebugMacro(<< "Reading from InputArray");
    std::string str(this->InputArray->GetPointer(0),
      static_cast<size_t>(
        this->InputArray->GetNumberOfTuples() * this->InputArray->GetNumberOfComponents()));
    this->StringStream = new std::istringstream(str);
    if (!this->StringStream || !(*this->StringStream))
    {
      vtkErrorMacro("Error opening string stream");
      delete this->StringStream;
      this->StringStream = nullptr;
      return 0;
    }
  }
  else if (!this->InputString.empty())
  {
    vtkDebugMacro(<< "Reading from InputString");
    this->StringStream = new std::istringstream(this->InputString);
    if (!this->StringStream || !(*this->StringStream))
    {
      vtkErrorMacro("Error opening string stream");
      delete this->StringStream;
      this->StringStream = nullptr;
      return 0;
    }
  }

  // Use the string stream.
  this->Stream = this->StringStream;

  return 1;
}

//------------------------------------------------------------------------------
void vtkXMLReader::CloseStream()