="spec value" id="val-meet_opt"><a href="#val-meet_opt" class="anchor"></a><code><span class="keyword">val</span> meet_opt : <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> <span><a href="index.html#type-t">t</a> option</span></code></dt><dd><p>same as meet but returns an option instead of raising Exit</p></dd></dl><dl><dt class="spec value" id="val-split"><a href="#val-split" class="anchor"></a><code><span class="keyword">val</span> split : 