sS dm_processEmbeddedSafeEvals(S s, O... _) {
  Map<S> evalCache = cast optPar evalCache(_);
  
  if (!contains(s, "{=")) ret s;
  LS tok = javaTok(s);
  Map<Int> bracketMap = curlyBracketMap(tok);
  for (int i = 1; i < l(tok)-4; i += 2) {
    continue unless eq(tok.get(i), "{") && eqGet(tok, i+1, "") && eqGet(tok, i+2, "=");
    // eval found
    
    int j = or(bracketMap.get(i), l(tok));
    S code = joinSubList(tok, i+4, j-1);
    
    if (!isSafeCodeFragment(code))
      replaceTokens(tok, i+2, i+4, "UNSAFE: ");
    else {
      S result = mapGet(evalCache, code);
      if (result == null) {
        print("Evaluating: " + code);
        try {
          result = strOrEmpty(dm_javaEvalOrInterpret(code));
        } catch e {
          printStackTrace(e);
          result = "";
        }
        mapPut(evalCache, code, result);
      }
      replaceTokens(tok, i, j+1, result);
    }
      
    i = j-2;
  }
  ret trim(join(tok));
}