Method ParseDenseData

IO/Infovis/vtkBiomTableReader.cxx:397–453

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//------------------------------------------------------------------------------
void vtkBiomTableReader::ParseDenseData()
{
  // find "data":
  size_t pos1 = this->FileContents.find("\"data\":");
  if (pos1 == std::string::npos)
  {
    vtkErrorMacro(<< "data not found in input file");
    return;
  }

  // find first [ (beginning of matrix)
  size_t pos_start = this->FileContents.find('[', pos1) + 1;
  if (pos_start == std::string::npos)
  {
    vtkErrorMacro(<< "data field not formatted properly");
    return;
  }

  for (int currentRow = 0; currentRow < this->NumberOfRows; ++currentRow)
  {
    // find [ (beginning of row)
    size_t pos_row_1 = this->FileContents.find('[', pos_start);
    if (pos_row_1 == std::string::npos)
    {
      vtkErrorMacro(<< "data field not formatted properly");
      return;
    }
    int currentCol;
    for (currentCol = 1; currentCol < this->NumberOfColumns; ++currentCol)
    {
      // find next comma
      size_t pos_row_2 = this->FileContents.find(',', pos_row_1 + 1);
      if (pos_row_2 == std::string::npos)
      {
        vtkErrorMacro(<< "data field not formatted properly");
        return;
      }

      // parse data value and insert it into the table
      std::string value = this->FileContents.substr(pos_row_1 + 1, pos_row_2 - pos_row_1 - 1);
      this->InsertValue(currentRow, currentCol, value);

      pos_row_1 = pos_row_2;
    }

    // the last value of the row ends with a ] instead of a comma
    size_t pos_row_2 = this->FileContents.find(']', pos_row_1 + 1);
    if (pos_row_2 == std::string::npos)
    {
      vtkErrorMacro(<< "data field not formatted properly");
      return;
    }
    std::string value = this->FileContents.substr(pos_row_1 + 1, pos_row_2 - pos_row_1 - 1);
    this->InsertValue(currentRow, currentCol, value);
    pos_start = pos_row_2;
  }
}