// returns a list of var mappings

static L<Map<ISearchVar, O>> xsearch(L<ISearchVar> vars, Class c, O... params) {

  for (ISearchVar v : vars) v.set(null); // reset vars

  params = expandParams(c, params);

  new L<Map<ISearchVar, O>> l;

  for (A concept : list(c))

    if (searchConcept_checkParams(concept, params)) {

      // Success. Record var mapping

      l.add(xsearch_makeVarMapping(vars));

      // Reset vars

      for (ISearchVar v : vars) v.set(null); // reset vars

    }

  ret l;

}

static Map<ISearchVar, O> xsearch_makeVarMapping(L<ISearchVar> vars) {

  new HashMap<ISearchVar, O> map;

  for (ISearchVar v : vars) {

    O o = v.get();

    if (o != null)

      map.put(v, o);

  }

  ret map;

}