an class="identifier">date</span><span class="special">&gt;</span> <span class="identifier">weekends</span><span class="special">;</span>

    <span class="identifier">date</span> <span class="identifier">cur_weekend_sat</span> 
        <span class="special">=</span> <span class="identifier">first</span><span class="special">(</span><span class="identifier">scope</span><span class="special">)</span> 
          <span class="special">+</span> <span class="identifier">days</span><span class="special">(</span><