en the parser encounters a violation of a certain invariant</p></dd></dl><dl><dt class="spec type" id="type-exc_info"><a href="#type-exc_info" class="anchor"></a><code><span class="keyword">type</span> exc_info</code></dt></dl><dl><dt class="spec exception" id="exception-ALFileException"><a href="#exception-ALFileException" class="anchor"></a><code><span class="keyword">exception</span> </code><code><span class="exception">ALFileException</span> <span class="keyword">of</span> <a href="index.html#type-exc_i