#include <iostream>
#include <regex>
using namespace std;
 
int main(int argv, const char* argc[])
{
    regex log_line_regex_(".+\\s(.+)$");
    char* log_line = "06-29 18:20:08.938 1031 1099 D WifiStateMachine: processMsgConnect oo ModeState";
    smatch matches; 
    if (regex_match(std::string(log_line), matches, log_line_regex_))
    {
        std::cout << "match: " << log_line << std::endl;
        unsigned i;
        for (i = 0; i < matches.size(); i++)
        {
            std::cout << "$" << i << ": " << std::string(matches[i].first, matches[i].second) << std::endl;
        }
    }
    return 0;
}

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