title: Regex-based matching and sustitution with nano?
body: <p>I am aware of <code>nano</code>'s search and replace functionality, but is it capable of using regular expressions for matching and substitution (particularly substitutions that use a part of the match)? If so, can you provide some examples of the syntax used (both for matching and replacing)?</p>
  
  <p>I cut my teeth on Perl-style regular expressions, but I've found that text editors will sometimes come up with their own syntax.</p>