Function ModifyDACHStreet

libs/search/ranker.cpp:73–111

This function supports only street names like "abcdstrasse"/"abcd strasse". @see Also FeatureNameInserter::AddDACHNames

// This function supports only street names like "abcdstrasse"/"abcd strasse".
/// @see Also FeatureNameInserter::AddDACHNames
vector<vector<strings::UniString>> ModifyDACHStreet(vector<strings::UniString> const & streetTokens)
{
  auto const size = streetTokens.size();
  ASSERT_GREATER(size, 0, ());

  vector<vector<strings::UniString>> result;
  for (auto const & sx : GetDACHStreets())
  {
    if (!strings::EndsWith(streetTokens.back(), sx.first))
      continue;

    if (streetTokens.back() == sx.first)
    {
      if (size == 1)
        return {};

      // "Abcd strasse" -> "abcdstrasse".
      result.emplace_back(streetTokens.begin(), streetTokens.end() - 1);
      result.back().back() += sx.first;

      // "Abcd strasse" -> "abcdstr".
      result.emplace_back(streetTokens.begin(), streetTokens.end() - 1);
      result.back().back() += sx.second;
      return result;
    }

    // "Abcdstrasse" -> "abcd strasse".
    auto const name = strings::UniString(streetTokens.back().begin(), streetTokens.back().end() - sx.first.size());
    result.push_back(streetTokens);
    result.back().back() = name;
    result.back().push_back(sx.first);

    // "Abcdstrasse" -> "abcdstr".
    result.push_back(streetTokens);
    result.back().back() = name + sx.second;
  }

  return result;
}

vector<strings::UniString> RemoveStreetSynonyms(vector<strings::UniString> const & tokens)
{