Hello Boost.Xpressive is an extension of Hello World. Like Hello World, Hello Boost.Xpressive is a simple console application. Hello Boost.Xpressive, however, also requires the Boost.Xpressive library.
The base code of Hello Boost.Xpressive is:
#include <iostream> #include <boost/xpressive/xpressive.hpp> ///Example adapted from http://www.boost.org/doc/libs/1_54_0/doc/html/xpressive/user_s_guide.html int main() { const std::string hello( "hello world!" ); const boost::xpressive::sregex rex = boost::xpressive::sregex::compile( "(\\w+) (\\w+)!" ); boost::xpressive::smatch what; if( boost::xpressive::regex_match( hello, what, rex ) ) { std::cout << what[0] << '\n'; // whole match std::cout << what[1] << '\n'; // first capture std::cout << what[2] << '\n'; // second capture } }
Here are some detailed examples of Hello Boost.Xpressive, depending on IDE and operating system:
'Hello Boost.Xpressive' using
Qt Creator under Cygwin
'Hello Boost.Xpressive' using
Qt Creator under Lubuntu
'Hello Boost.Xpressive' using Qt Creator under Lubuntu,
crosscompile to
Windows
