static MapSO parseSimpleValueMap(S s) {
  s = uncurly(s);
  new LinkedHashMap<S, O> map;
  for (part : splitAtComma_trim(s)) {
    PairS p = tok_splitAtEquals_pair(part);
    if (p != null) {
      map.put(p.a, parseIntOrDoubleOrKeepObject(p.b));
    }
  }
  ret map;
}