ion">location</a></code></pre><pre><span id="VALparse_error"><span class="keyword">val</span> parse_error</span> : <code class="type">string -> 'a</code></pre><pre><span id="VALlocUnknown"><span class="keyword">val</span> locUnknown</span> : <code class="type"><a href="Errormsg.html#TYPElocation">location</a></code></pre><div class="info">
An unknown location for use when you need one but you don't have one<br>
</div>
<pre><span id="VALreadingFromStdin"><span class="keyword">val</span> readingFromStdin</spa