bool IsometricGridDot::ParseXmlParamsString()

in IsometricPatternMatcher/IsometricPattern.cpp [160:214]
47 lines of code
9 McCabe index (conditional complexity)

bool IsometricGridDot::ParseXmlParamsString(
    const std::string& s, std::string& binaryPattern, size_t& numberLayer,
    Eigen::Vector2i& gridRowsCols, double& horizontalSpacing,
    double& verticalSpacing, double& dotRadius) {
  if (!ParseOption(s, "-vertical-spacing ", verticalSpacing)) {
    LOG(ERROR) << "Xml comment in svg pattern file does not contain "
                  "-vertical-spacing field.";
    return false;
  }

  if (!ParseOption(s, "-horizontal-spacing ", horizontalSpacing)) {
    LOG(ERROR) << "Xml comment in svg pattern file does not contain "
                  "-horizontal-spacing field.";
    return false;
  }

  if (!ParseOption(s, "-layer-number ", numberLayer)) {
    LOG(ERROR) << "Xml comment in svg pattern file does not contain "
                  "-layer-number field.";
    return false;
  }

  if (!ParseOption(s, "-rows ", gridRowsCols[0])) {
    LOG(ERROR)
        << "Xml comment in svg pattern file does not contain -rows field.";
    return false;
  }

  if (!ParseOption(s, "-cols ", gridRowsCols[1])) {
    LOG(ERROR)
        << "Xml comment in svg pattern file does not contain -cols field.";
    return false;
  }

  if (!ParseOption(s, "-grid-dotRadius ", dotRadius)) {
    LOG(ERROR) << "Xml comment in svg pattern file does not contain "
                  "-grid-dotRadius field.";
    return false;
  }

  if (!ParseOption(s, "-grid-pattern ", binaryPattern)) {
    LOG(ERROR) << "Xml comment in svg pattern file does not contain "
                  "-grid-pattern field.";
    return false;
  }

  if (std::ceil((numberLayer * 2 + 1) * (numberLayer * 2 + 1)) !=
      binaryPattern.length()) {
    LOG(ERROR)
        << "Pattern string length does not agree with the specified grid size.";
    return false;
  }

  return true;
}