std::string url_encode()

in aws/utils/utils.cc [142:158]

• 17 lines of code
• 11 McCabe index (conditional complexity)

std::string url_encode(const std::string& s) {
  static const std::string hex_alphabet = "0123456789ABCDEF";
  std::string r;
  for (auto c : s) {
    bool is_digit = c >= 48 && c <= 57;
    bool is_alphabet = (c >= 65 && c <= 90) || (c >= 97 && c <= 122);
    bool is_unreserved = c == '-' || c == '~' || c == '_' || c == '.';
    if (is_digit || is_alphabet || is_unreserved) {
      r += c;
    } else {
      r += '%';
      r += hex_alphabet[c / 16];
      r += hex_alphabet[c % 16];
    }
  }
  return r;
}