gentoo-overlay/app-editors/nano/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<maintainer>
 <email>vapier@gentoo.org</email>
</maintainer>
<longdescription>
GNU nano - an enhanced clone of the Pico text editor.

The nano project was started because of a few "problems" with the
wonderfully easy-to-use and friendly Pico text editor.

First and foremost is its license: the Pine suite does not use the
GPL or a GPL-friendly license, and has unclear restrictions on
redistribution.  Because of this, Pine and Pico are not included with
many GNU/Linux distributions.  Also, other features (like goto line
number or search and replace) were unavailable until recently or
require a command line flag.  Yuck.

nano aims to solve these problems by emulating the functionality of
Pico as closely as possible while addressing the problems above and
perhaps providing other extra functionality.
</longdescription>
<use>
 <flag name='justify'>Enable justify/unjustify functions for text formatting.</flag>
 <flag name='debug'>
  Enable debug messages and assert warnings.  Note that these will all be sent
  straight to stderr rather than some logging facility.
 </flag>
 <flag name='magic'>
  Add magic file support (sys-apps/file) to automatically detect appropriate syntax highlighting
 </flag>
 <flag name='minimal'>
  Disable all fancy features, including ones that otherwise have a dedicated
  USE flag (such as spelling).
 </flag>
</use>
</pkgmetadata>