boost example2

boost example2

1.소스

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

int main( int argc , char ** argv )
{
    std::string line;
    boost::regex pat( "^Subject: (Re: |Aw: )*(.*)" );

    while (std::cin)
    {
        std::getline(std::cin, line);
        boost::smatch matches;
        if (boost::regex_match(line, matches, pat))
            std::cout << matches[2] << std::endl;
    }
}

결과

hacker@ubuntu:~/cpp$
hacker@ubuntu:~/cpp$
hacker@ubuntu:~/cpp$
hacker@ubuntu:~/cpp$ c++ -I /home/hacker/boost_1_61_0 -o boost_ex02 boost_ex02.cpp /home/hacker/boost_1_61_0/stage/lib/libboost_regex.a
hacker@ubuntu:~/cpp$ echo "Subject: re dfdf" | ./boost_ex02 
re dfdf