boost::xpressive::graph — Matches a graph character.
// In header: <boost/xpressive/regex_primitives.hpp> unspecified graph;
The regex traits are used to determine which characters are graphable. To match any character that is not graphable, use ~graph.
graph is equivalent to /[[:graph:]]/ in perl. ~graph is equivalent to /[[:^graph:]]/ in perl.
![[Note]](../../../../doc/src/images/note.png)