<?xml version="1.0"?>
<clo>
	<option>
		<type>string</type>
		<long>string</long>
	</option>
	<option>
		<type>string</type>
		<short>s</short>
	</option>
</clo>

cout << clo.get_string_option("string") << " ";
cout << clo.get_string_option("s") << endl;

--string test -s test2
-s test
-s one --string two

test test2
 test
one two
