CPP_Regex_04.cpp

#include<iostream>
#include<string>
#include<vector>
#include<regex>
using namespace std;

//regex_token_iterator: pointing to a sub match
int main() {
	string str = "zhangxm01@gmail.com; zhan@163.com; zhan_j@yahoo.com";
    regex e("([[:w:]]+)@([[:w:]]+)\.com");

    //regex iterator
    sregex_token_iterator pos(str.cbegin(), str.cend(), e);

    //default constructor defines past-the-end iterator
    sregex_token_iterator end; 
    
    for(; pos != end; ++pos){
        //str() cannot have any parameters
        cout << "Matched: " << pos->str() << endl;
        cout << endl;
    }
	system("pause");
	return 0;
}