Method parseUnicodeEscapeSequence

source/core/StarShellParser.cpp:172–202

}

auto ShellParser::parseUnicodeEscapeSequence(Maybe<Char> previousCodepoint) -> Char {
  String codepoint;

  auto letter = current();

  while (!isSpace(*letter) && codepoint.size() < 4) {
    auto letter = next();
    if (!letter) {
      break;
    }

    if (!isxdigit(*letter)) {
      return STAR_UTF32_REPLACEMENT_CHAR;
    }

    codepoint.append(*letter);
  }

  if (!codepoint.size()) {
    return 'u';
  }

  if (codepoint.size() != 4) // exactly 4 digits are required by \u
    return STAR_UTF32_REPLACEMENT_CHAR;

  try {
    return hexStringToUtf32(codepoint.utf8(), previousCodepoint);
  } catch (UnicodeException const&) {
    return STAR_UTF32_REPLACEMENT_CHAR;
  }
}

bool ShellParser::notDone() const {
  return m_current != m_end;