'collection list'><span class='delimiter'>(</span><span class='symbol'>fn</span>
  <span class='collection vector'><span class='delimiter'>[</span><span class='symbol'>buffer-ptr</span> <span class='symbol'>event</span><span class='delimiter'>]</span></span>
  <span class='collection list'><span class='delimiter'>(</span><span class='symbol'>case</span> <span class='symbol'>event</span> <span class='symbol'>EVENT_BUFENTER</span> <span class='collection list'><span class='delimiter'>(</span><span class='symb