Function url_encode

src/common/TextUtils.cpp:308–326

  }

  std::string url_encode(const std::string& text) {
    char hex[5];
    std::string destination;
    for (size_t i = 0;  i < text.size(); ++i) {
      unsigned char c = text[i];
      if (isAlphanumeric(c)) {
        destination += c;
      }
      else if (isWhitespace(c)) {
        destination += '+';
      }
      else {
        destination += '%';
        sprintf(hex, "%-2.2X", c);
        destination.append(hex);
      }
    }
    return destination;
  }


  std::string escape(const std::string& text, char escaper) {