s='tstring_content'>&lt;</span><span class='embexpr_beg'>#{</span><span class='backref'>$1</span><span class='embexpr_end'>}</span><span class='tstring_content'>&gt;</span><span class='tstring_end'>&quot;</span></span>
      <span class='kw'>else</span>
        <span class='kw'>nil</span>
      <span class='kw'>end</span>
    <span class='rbrace'>}</span><span class='period'>.</span><span class='id identifier rubyid_compact'>compact</span><span class='period'>.</span><span class='id identifier rubyid_first'