sS extractKeywordPlusBracketed(S s, S keyword) {
  LS tok = javaTok(raw);
  if (countCodeTokens(tok) == 2 && eq(firstCodeToken(tok), keyword)
    && tok_isRoundOrCurlyBracketed(secondCodeToken(tok)))
    ret tok_deRoundOrCurlyBracket(secondCodeToken(tok));
  null;
}