de>nano</code> is run, this syntax will be automatically
activated if the current filename matches the extended regular
expression <var>fileregex</var>.  Or the syntax can be explicitly
activated by using the <samp>-Y</samp> or <samp>--syntax</samp>
command-line option followed by the <var>name</var>.
</p>
<p>The <code>default</code> syntax is special: it takes no <var>fileregex</var>,
and applies to files that don&rsquo;t match any syntax&rsquo;s regexes.
The <code>none</code> syntax is reserved; specifyin