<pre class="ebnf">
MapType = "map" "[" KeyType "]" ElementType .
KeyType = Type .
</pre>

<p>
The <a href="#Comparison_operators">comparison operators</a>
<code>==</code> and <code>!=</code> must be fully defined
for operands of the key type; thus the key type must not be a function, map, or
slice.
If the key type is an interface type, these
comparison operators must be defined for the dynamic key values;

    <glob pattern="*.movie"/>
  </mime-type>

  <mime-type type="application/x-matroska">
    <_comment>Matroska Media Container</_comment>
    <!-- Common magic across all Matroska varients -->
    <!-- For full detection, we need a custom Detector, see TIKA-1180 -->
    <magic priority="40">
      <match value="0x1A45DFA3" type="string" offset="0" />
    </magic>
  </mime-type>

  <mime-type type="video/x-matroska">