e class="code"><span class="keyword">sig</span></code> <a href="Misc.LongString.html">..</a> <code class="code"><span class="keyword">end</span></code></pre>
<pre><span id="VALedit_distance"><span class="keyword">val</span> edit_distance</span> : <code class="type">string -&gt; string -&gt; int -&gt; int option</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">edit_distance&nbsp;a&nbsp;b&nbsp;cutoff</code> computes the edit distance between
    strings <code class="code">a</code>