static bool ctxEvalCondition(S cond) {
  SS globals = ctxContext().globals;
  L<S> tok = javaTok(cond);
  S t = get(tok, 1);
  if (isIdentifier(t) && (
    l(tok) == 9 && eqGet(tok, 3, "=") && eqGet(tok, 5, "=") && eqGetIC(tok, 7, "true")
    || l(tok) == 3))
    ret eq(t, "TRUE") || eqic(globals.get(t), "TRUE");
  fail("Unknown condition: " + cond);
}