Boost::regex example

test.cpp

//Boost::regex example
//Compile:
//# g++ test.cpp -lboost_regex

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


using namespace std;

int main(int argc, char** argv) {
        boost::regex expression("name=([a-zA-Z0-9]+)");
        boost::smatch matched;

        ifstream ifs("test.txt");
        string line;

        while(getline(ifs, line)) {
                if(!boost::regex_search(buf, matched, expression, boost::regex_constants::match_partial)) {
                        continue;
                }
                cout << "マッチしたパターン全体=" << matched.str(0) << "\t\t";
                cout << "キャプチャ部分=" << matched.str(1) << "\n";
        }
}