std::string Escape()

in lib/yamlcpp/src/exp.cpp [74:135]

• 53 lines of code
• 24 McCabe index (conditional complexity)

std::string Escape(Stream& in) {
  // eat slash
  char escape = in.get();

  // switch on escape character
  char ch = in.get();

  // first do single quote, since it's easier
  if (escape == '\'' && ch == '\'')
    return "\'";

  // now do the slash (we're not gonna check if it's a slash - you better pass
  // one!)
  switch (ch) {
    case '0':
      return std::string(1, '\x00');
    case 'a':
      return "\x07";
    case 'b':
      return "\x08";
    case 't':
    case '\t':
      return "\x09";
    case 'n':
      return "\x0A";
    case 'v':
      return "\x0B";
    case 'f':
      return "\x0C";
    case 'r':
      return "\x0D";
    case 'e':
      return "\x1B";
    case ' ':
      return R"( )";
    case '\"':
      return "\"";
    case '\'':
      return "\'";
    case '\\':
      return "\\";
    case '/':
      return "/";
    case 'N':
      return "\x85";
    case '_':
      return "\xA0";
    case 'L':
      return "\xE2\x80\xA8";  // LS (#x2028)
    case 'P':
      return "\xE2\x80\xA9";  // PS (#x2029)
    case 'x':
      return Escape(in, 2);
    case 'u':
      return Escape(in, 4);
    case 'U':
      return Escape(in, 8);
  }

  std::stringstream msg;
  throw ParserException(in.mark(), std::string(ErrorMsg::INVALID_ESCAPE) + ch);
}