Method getChargeRange

src/openms/source/METADATA/ProteinIdentification.cpp:188–247

  }

  std::pair<int,int> ProteinIdentification::SearchParameters::getChargeRange() const
  {
    std::pair<int,int> result{0,0};

    try // is there only one number (min = max)?
    {
      result.first = charges.toInt();
      result.second = result.first;
    }
    catch (Exception::ConversionError&) // nope, something else
    {
      if (charges.hasSubstring(',')) // it's probably a list
      {
        IntList chgs = ListUtils::create<Int>(charges);
        auto minmax = minmax_element(chgs.begin(), chgs.end());
        result.first = *minmax.first;
        result.second = *minmax.second;
      }
      else if (charges.hasSubstring(':')) // it's probably a range
      {
        StringList chgs;
        charges.split(':', chgs);
        if (chgs.size() > 2)
        {
          throw OpenMS::Exception::MissingInformation(
            __FILE__, __LINE__, OPENMS_PRETTY_FUNCTION,
            "Charge string in SearchParameters not parseable.");
        }
        result.first = getChargeValue_(chgs[0]);
        result.second = getChargeValue_(chgs[1]);
      }
      else
      {
        size_t pos = charges.find('-', 0);
        std::vector<size_t> minus_positions;
        while (pos != string::npos)
        {
          minus_positions.push_back(pos);
          pos = charges.find('-', pos + 1);
        }
        if (!minus_positions.empty() && minus_positions.size() <= 3) // it's probably a range with '-'
        {
          Size split_pos(0);
          if (minus_positions.size() <= 1) // split at first minus
          {
            split_pos = minus_positions[0];
          }
          else
          {
            split_pos = minus_positions[1];
          }
          String first = charges.substr(0, split_pos);
          String second = charges.substr(split_pos + 1, string::npos);
          result.first = getChargeValue_(first);
          result.second = getChargeValue_(second);
        }
      }
    }