Function GetPostcodes

generator/postcode_points_builder.cpp:47–92

using ZipIndexValue = std::pair<strings::UniString, Uint64IndexValue>;

void GetPostcodes(std::string const & filename, storage::CountryId const & countryId, FieldIndices const & fieldIndices,
                  char const * separator, bool hasHeader, storage::CountryInfoGetter const & infoGetter,
                  std::vector<m2::PointD> & valueMapping, std::vector<ZipIndexValue> & keyValuePairs)
{
  ASSERT(!filename.empty(), ());
  std::ifstream data(filename);
  if (!data.is_open())
  {
    LOG(LERROR, ("Can't open postcodes file:", filename));
    return;
  }

  std::string line;

  if (hasHeader && !std::getline(data, line))
    return;

  while (std::getline(data, line))
  {
    std::vector<std::string_view> fields;
    strings::Tokenize(std::string_view(line), separator, [&fields](std::string_view v)
    {
      strings::Trim(v, "\" ");
      // Maybe empty, checks below should work for actual values.
      fields.push_back(v);
    });
    CHECK_GREATER_OR_EQUAL(fields.size(), fieldIndices.m_datasetCount, (line));

    double lat;
    CHECK(strings::to_double(fields[fieldIndices.m_latIndex], lat), (line));

    double lon;
    CHECK(strings::to_double(fields[fieldIndices.m_longIndex], lon), (line));

    auto const p = mercator::FromLatLon(lat, lon);

    std::vector<storage::CountryId> countries;
    infoGetter.GetRegionsCountryId(p, countries, 200.0 /* lookupRadiusM */);
    if (std::find(countries.begin(), countries.end(), countryId) == countries.end())
      continue;

    keyValuePairs.emplace_back(search::NormalizeAndSimplifyString(fields[fieldIndices.m_postcodeIndex]),
                               valueMapping.size());
    valueMapping.push_back(p);
  }
}

void GetUKPostcodes(std::string const & filename, storage::CountryId const & countryId,
                    storage::CountryInfoGetter const & infoGetter, std::vector<m2::PointD> & valueMapping,