<span class="hljs-keyword">case</span> x <span class="hljs-keyword">do</span>
  <span class="hljs-number">1</span> -&gt; <span class="hljs-symbol">:one</span>
  <span class="hljs-number">2</span> -&gt; <span class="hljs-symbol">:two</span>
  n <span class="hljs-keyword">when</span> is_integer(n) -&gt; <span class="hljs-symbol">:more</span>
  _ -&gt; <span class="hljs-symbol">:error</span>
<span class="hljs-keyword">end</span>

<span class="hljs-keyword">cond</span> <span class="hljs-keyword">do</span>
  x &gt; <span class="hljs-number">30</span> -&gt; <span class="hljs-symbol">:ok</span>
  y &lt;= <span class="hljs-number">7</span> -&gt; <span class="hljs-symbol">:maybe</span>
  z == <span class="hljs-symbol">:skip</span> -&gt; <span class="hljs-symbol">:ok</span>
  <span class="hljs-literal">true</span> -&gt; <span class="hljs-symbol">:error</span>
<span class="hljs-keyword">end</span>

<span class="hljs-keyword">if</span> x &gt; <span class="hljs-number">4</span> <span class="hljs-keyword">do</span>
  <span class="hljs-symbol">:ok</span>
<span class="hljs-keyword">end</span>

<span class="hljs-keyword">if</span> x &gt; <span class="hljs-number">4</span>, <span class="hljs-symbol">do:</span> <span class="hljs-symbol">:ok</span>

<span class="hljs-keyword">if</span> x &gt; <span class="hljs-number">4</span> <span class="hljs-keyword">do</span>
  <span class="hljs-symbol">:ok</span>
<span class="hljs-keyword">else</span>
  <span class="hljs-symbol">:error</span>
<span class="hljs-keyword">end</span>

<span class="hljs-keyword">if</span> x &gt; <span class="hljs-number">4</span>, <span class="hljs-symbol">do:</span> <span class="hljs-symbol">:ok</span>, <span class="hljs-symbol">else:</span> <span class="hljs-symbol">:error</span>

<span class="hljs-keyword">unless</span> y &lt; <span class="hljs-number">50</span> <span class="hljs-keyword">do</span>
  <span class="hljs-symbol">:error</span>
<span class="hljs-keyword">end</span>

<span class="hljs-keyword">unless</span> y &lt; <span class="hljs-number">50</span>, <span class="hljs-symbol">do:</span> <span class="hljs-symbol">:error</span>

<span class="hljs-keyword">unless</span> y &lt; <span class="hljs-number">50</span> <span class="hljs-keyword">do</span>
  <span class="hljs-symbol">:error</span>
<span class="hljs-keyword">else</span>
  <span class="hljs-symbol">:ok</span>
<span class="hljs-keyword">end</span>

<span class="hljs-keyword">unless</span> y &lt; <span class="hljs-number">50</span>, <span class="hljs-symbol">do:</span> <span class="hljs-symbol">:error</span>, <span class="hljs-symbol">else:</span> <span class="hljs-symbol">:ok</span>