� <a href="../../../../index.html">Index</a> &#x00BB; <a href="../../../index.html">kkmarkdown</a> &#x00BB; <a href="../../index.html">Lib</a> &#x00BB; <a href="../index.html">BlockRule</a> &#x00BB; S</nav><header class="odoc-preamble"><h1>Module type <code><span>BlockRule.S</span></code></h1><p>Signature for a block-level rule</p></header><div class="odoc-content"><div class="odoc-spec"><div class="spec value anchored" id="val-is_safe"><a href="#val-is_safe" class="anchor"></a><code><span><span class="keyw