#include <boost/regex.hpp>
#include <string>
#include <iostream>

int main(void)
{
	static const boost::regex regex("^blah\\.txt", boost::regex::perl | boost::regex::icase);
	const std::string teststring = "blah.txt";
	const bool matched = boost::regex_match(teststring, regex);
	if(matched)
		std::cout << "regex matched" << std::endl;
	else
		std::cout << "regex did not match" << std::endl;
	return 0;
}