e parsing facility, which works
as follows:</p>

<pre class="rust rust-example-rendered">
<span class="macro">named</span><span class="macro">!</span>(<span class="ident">tuple</span><span class="op">&lt;</span><span class="kw-2">&amp;</span>[<span class="ident">u8</span>], (<span class="kw-2">&amp;</span>[<span class="ident">u8</span>], <span class="kw-2">&amp;</span>[<span class="ident">u8</span>]) <span class="op">&gt;</span>,
  <span class="macro">ws</span><span class="macro">!</span>(<span class="macro