code: private String removeLocalParamPrefix(final String q) {
  
          int index = q.indexOf('}');
          if (index >= 0) {
              return q.substring(index + 1);
          }
          return q;
      }
docs: Removes the !{ex=...} prefix from the query.
  @param q the original query
  @return the query with the prefix !{ex=...} removed.