#include <boost/regex.hpp>
#include <boost/filesystem/path.hpp>
#include <boost/filesystem/operations.hpp>
#include <iostream>
#include <fstream>

namespace bfs = boost::filesystem;

int main(int, char**)
{
	int line_no;
	std::ifstream fh;
	const boost::regex re("[A-Za-z]{5}-[A-Za-z]{3}");
	std::string line;
	const bfs::directory_iterator end;
	for (bfs::directory_iterator it("."); it != end; ++it)
	{
		std::string filename = it->leaf();
		if (filename.substr(filename.length() - 4) == ".txt")
		{
			fh.open(filename.c_str(), std::ifstream::in);
			line_no = 0;
			while(fh.good())
			{
				++line_no;
				std::getline(fh, line);
				if (regex_search(line, re))
				{
					std::cout << filename << " " << line_no << ": " << line << "\n"; 
				}
			}
			fh.close();
		}
	}
	return 0;
}