Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

Global graph

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.

	Note
	graph is equivalent to /[[:graph:]]/ in perl. ~graph is equivalent to /[[:^graph:]]/ in perl.