# File formvalidator.rb, line 208
    def required_regexp
      @form.keys.each do |elem|
        @profile[:required_regexp].to_a.each do |regexp|
          regexp = Regexp.new(regexp)
          if elem =~ regexp
            @required_fields << elem unless @required_fields.include?(elem)
            @missing_fields.push(elem) if @form[elem].to_s.empty?
          end
        end
      end
      @missing_fields
    end