Method ReadDimensionSet

IO/Geometry/vtkOpenFOAMReader.cxx:4060–4116

Read dimensions set (always ASCII). The leading '[' has already been removed before calling. - can be integer or floating point - user-generated files may have only the first five dimensions. Note - may even have "human-readable" values such as [kg m^-1 s^-2] but they are very rare and we silently skip these

// - may even have "human-readable" values such as [kg m^-1 s^-2] but they are very rare
//   and we silently skip these
void vtkFoamEntryValue::ReadDimensionSet(vtkFoamIOobject& io)
{
  constexpr int nDimensions = 7; // There are 7 base dimensions
  this->MakeScalarList(nDimensions, 0.0);
  vtkFloatArray& dims = *(this->Superclass::ScalarListPtr);

  // Read using tokenizer to handle scalar/label, variable lengths, and ignore human-readable
  vtkFoamToken tok;
  char expectEnding = ']';
  bool goodInput = true;

  for (int ndims = 0; ndims < nDimensions && goodInput && expectEnding; ++ndims)
  {
    if (!io.Read(tok))
    {
      goodInput = false;
    }
    else if (tok.IsNumeric())
    {
      dims.SetValue(ndims, tok.ToFloat());
    }
    else if (tok.IsPunctuation())
    {
      if (tok == expectEnding)
      {
        expectEnding = '\0'; // Already got the closing ']'
      }
      else
      {
        goodInput = false;
      }
    }
    else
    {
      // Some unknown token type (eg, encountered human-readable units)
      // - skip until ']'
      while ((goodInput = io.Read(tok)))
      {
        if (tok.IsPunctuation() && (tok == expectEnding))
        {
          expectEnding = '\0'; // Already got the closing ']'
          break;
        }
      }
      break;
    }
  }

  if (!goodInput)
  {
    io.ThrowStackTrace("Unexpected input while parsing dimensions array");
  }
  else if (expectEnding)
  {
    io.ReadExpecting(expectEnding);
  }
}