Method parseEquality

src/Eval.cpp:443–457

/////////////////////////////////////////////////////////////////////////// Equality --> Comparative {( "==" | "=" | "!==" | "!=" ) Comparative}

////////////////////////////////////////////////////////////////////////////////
// Equality    --> Comparative {( "==" | "=" | "!==" | "!=" ) Comparative}
bool Eval::parseEquality(std::vector<std::pair<std::string, Lexer::Type>>& infix,
                         unsigned int& i) const {
  if (i < infix.size() && parseComparative(infix, i)) {
    while (i < infix.size() && infix[i].second == Lexer::Type::op &&
           (infix[i].first == "==" || infix[i].first == "=" || infix[i].first == "!==" ||
            infix[i].first == "!=")) {
      ++i;
      if (!parseComparative(infix, i)) return false;
    }

    return true;
  }

  return false;
}

////////////////////////////////////////////////////////////////////////////////
// Comparative --> Arithmetic {( "<=" | "<" | ">=" | ">" ) Arithmetic}