Method OpenStream

IO/Infovis/vtkDelimitedTextReader.cxx:228–256

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

//------------------------------------------------------------------------------
std::unique_ptr<std::istream> vtkDelimitedTextReader::OpenStream()
{
  if (!this->ReadFromInputString)
  {
    if (!this->FileName)
    {
      vtkErrorMacro("No Filename provided, aborting.");
      return nullptr;
    }
    std::unique_ptr<std::istream> file_stream{ new vtksys::ifstream(this->FileName, ios::binary) };

    if (!file_stream->good())
    {
      vtkErrorMacro("Unable to open input file " + std::string(this->FileName));
      return nullptr;
    }

    return file_stream;
  }
  else
  {
    if (!this->InputString)
    {
      vtkErrorMacro("Empty input string, aborting.");
      return nullptr;
    }
    return std::unique_ptr<std::istream>{ new std::istringstream(this->InputString) };
  }
}

//------------------------------------------------------------------------------
vtkTextCodec* vtkDelimitedTextReader::CreateTextCodec(std::istream* input_stream)