[Boost-users] [xpressive] literals in regex without escaping...

Hello *, I need to parse some logger lines using boost xpressive. The line looks like: fname:line_no [severity] logging message When building the xpressive regex if I need to match the severity (e.g. [INFO]) I need to escape the square brackets... Is there some xpressive construct (like as_xpr) which makes from all characters literals. So that I can write smth like: sregex re = *_ >> literals("[INFO]") >> *_ Many thanks, Ovanes