scope javaTokNPunctuationWithBrackets.

static Map<S, LS> #cache = synchronizedMRUCache(1000);

static L<S> javaTokNPunctuationWithBrackets(S s) {
  LS tok = cache.get(s);
  if (tok == null) cache.put(s, tok = javaTokNPunctuationWithBrackets_uncached(s));
  ret tok;
}

static L<S> javaTokNPunctuationWithBrackets_uncached(S s) {
  ret tok_combineRoundOrCurlyBrackets_keep(javaTokNPunctuation_bracketsInC(s));
}

end scope

Began life as a copy of #1017442