simple-cpp-game-study/PPP3/goc.cpp

#include <iostream>
#include <fstream>
#include <fmt/core.h>
#include <regex>
#include <string>
#include <iterator>
#include <ctime>

using namespace std;
using namespace fmt;

int main()
{
  regex err_re("(.*?):([0-9]+):([0-9]+):\\s*(.*?):\\s*(.*)");
  string line;
  smatch err;
  ofstream stats_out;
  stats_out.open("stats.csv", ios::out | ios::app);
  auto t = time(nullptr);
  auto tm = *std::gmtime(&t);

  while(getline(cin, line)) {
    print("{}\n", line);
    if(regex_match(line, err, err_re)) {
      string file_name = err[1].str();
      string line = err[2].str();
      string col = err[3].str();
      string type = err[4].str();
      string message = err[5].str();

      stats_out << put_time(&tm, "%FT%TZ");
      stats_out << format(",{},{},{},{},{}\n", file_name, line, col, type, message);
    }
  }

  stats_out.close();
  return 0;
}