span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">reader</span><span class="ruby-operator">|</span>
  <span class="ruby-constant">Minitar</span><span class="ruby-operator">::</span><span class="ruby-constant">Reader</span>.<span class="ruby-identifier">open</span> <span class="ruby-identifier">reader</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">tar</span><span class="ruby-operator">|</