Function expand_ellipse

fem/tensorcoefficient.cpp:343–357

        }

        pair<string,string> expand_ellipse(string signature_part, const shared_ptr<CoefficientFunction> cf,
                              const string& existing_symbols, string ellipse_symbols = "")
        {
          auto pos = signature_part.find("...");
          if (pos == string::npos)
              return {std::move(signature_part), std::move(ellipse_symbols)};

          auto nnew = cf->Dimensions().Size() - (signature_part.size() - 3);

          if (nnew > ellipse_symbols.size())
              ellipse_symbols += new_index_symbols(existing_symbols + ellipse_symbols, nnew - ellipse_symbols.size());

          signature_part = replace_ellipse(signature_part, pos, nnew, ellipse_symbols);
          return {std::move(signature_part), std::move(ellipse_symbols)};
        }

        string expand_ellipses(const string& signature, const Array<shared_ptr<CoefficientFunction>>& cfs)
        {