Method OpenVTKFile

IO/XML/vtkXMLReader.cxx:317–363

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

//------------------------------------------------------------------------------
int vtkXMLReader::OpenVTKFile()
{
  if (this->FileStream)
  {
    vtkErrorMacro("File already open.");
    return 1;
  }

  if (!this->Stream && !this->FileName)
  {
    vtkErrorMacro("File name not specified");
    return 0;
  }

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

  // Need to open a file.  First make sure it exists.  This prevents
  // an empty file from being created on older compilers.
  vtksys::SystemTools::Stat_t fs;
  if (vtksys::SystemTools::Stat(this->FileName, &fs) != 0)
  {
    vtkErrorMacro("Error opening file " << this->FileName);
    return 0;
  }

  std::ios_base::openmode mode = ios::in;
#ifdef _WIN32
  mode |= ios::binary;
#endif
  this->FileStream = new vtksys::ifstream(this->FileName, mode);
  if (!this->FileStream || !(*this->FileStream))
  {
    vtkErrorMacro("Error opening file " << this->FileName);
    delete this->FileStream;
    this->FileStream = nullptr;
    return 0;
  }

  // Use the file stream.
  this->Stream = this->FileStream;

  return 1;
}

//------------------------------------------------------------------------------
int vtkXMLReader::OpenVTKString()