scope wordTokC_cached.

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

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

end scope