Method parseBackslash

source/core/StarShellParser.cpp:117–170

}

auto ShellParser::parseBackslash() -> Char {
  auto letter = next();

  if (!letter) {
    return '\\';
  }

  switch (*letter) {
    case ' ':
      return ' ';
    case 'n':
      return '\n';
    case 't':
      return '\t';
    case 'r':
      return '\r';
    case 'b':
      return '\b';
    case 'v':
      return '\v';
    case 'f':
      return '\f';
    case 'a':
      return '\a';
    case '\'':
      return '\'';
    case '"':
      return '"';
    case '\\':
      return '\\';
    case '0':
      return '\0';
    case 'u': {
      auto letter = parseUnicodeEscapeSequence();
      if (isUtf16LeadSurrogate(letter)) {
        auto shouldBeSlash = next();
        if (shouldBeSlash && shouldBeSlash == '\\') {
          auto shouldBeU = next();
          if (shouldBeU && shouldBeU == 'u') {
            return parseUnicodeEscapeSequence(letter);
          } else {
            previous();
          }
        }
        previous();
        return STAR_UTF32_REPLACEMENT_CHAR;
      } else {
        return letter;
      }
    }
    default:
      return *letter;
  }
}

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