Function escapeString

src/Library/Utility.cpp:34–72

  namespace Utility
  {
    std::string escapeString(const std::string& string_raw)
    {
      std::string result;
      const std::locale c_locale("C");

      for (auto it = string_raw.cbegin(); it != string_raw.cend(); ++it) {
        const char c = *it;

        /*
         * Escape any double-quote and backslash characters.
         */
        if (c == '"') {
          result.append("\\");
          result.append("\"");
          continue;
        }

        if (c == '\\') {
          result.append("\\");
          result.append("\\");
          continue;
        }

        /*
         * If the current character is printable in the "C" locale,
         * append it. Otherwise convert it to \xHH form, where HH is
         * the hexadecimal representation of the character value.
         */
        if (std::isprint(c, c_locale)) {
          result.push_back((char)c);
        }
        else {
          const std::string hexbyte = numberToString((uint8_t)c, "\\x", 16, 2, '0');
          result.append(hexbyte);
        }
      }

      return result;
    }

    std::string unescapeString(const std::string& string_escaped)
    {