boost reg match的问题，很奇怪，不知道怎么弄

Question

//CListboost::smatch,boost::smatch& Q_Regex::QRegexList(std::string htmlcode,CString RegStr)
//{ //提取子串
// boost::smatch mat;
// boost::regex reg(RegStr);
// bool r=boost::regex_match(htmlcode, mat, reg);
// CListboost::match_results<std::string::const_iterator,boost::match_resultsstd::string::const_iterator&> clist;
// if(r) //如果匹配成功
// {
// //显示所有子串
//
// for (int i = 0; i < mat.size(); i ++)
// clist.AddTail(mat[i]);
// }
//
//

// return clist;
//

//}

clist.AddTail(mat[i]);这里提示类型不对，不知道mat怎么转sub_match,或者用其他什么方法

Answer 1

用sregex_token_iterator

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

using namespace std;
using namespace boost;

int main() 
{ 
    string input = "test1 ,, test2,, test3,, test0,,";
    boost::regex r("(test[0-9])(?:$|[ ,]+)");
    boost::smatch what;

    std::string::const_iterator start = input.begin();
    std::string::const_iterator end   = input.end();

    while (boost::regex_search(start, end, what, r))
    {
        string stest(what[1].first, what[1].second);
        cout << stest << endl;
        // Update the beginning of the range to the character
        // following the whole match
        start = what[0].second;
    }

    // Alternate method using token iterator 
    const int subs[] = {1};  // we just want to see group 1
    boost::sregex_token_iterator i(input.begin(), input.end(), r, subs);
    boost::sregex_token_iterator j;
    while(i != j)
    {
       cout << *i++ << endl;
    }

    return 0;
}