LogParser.cpp

#include <iostream>
#include <fstream>
#include <sstream>
#include <string>
#include <set>
#include <vector>
#include <algorithm>
#include <map>
using namespace std;

bool startsWith( const std::string& s, const std::string& target)
{
	if (s.size() < target.size())
	{
		return false;
	}

	for (int i = 0; i < target.size(); ++i)
	{
		if (s[i] != target[i])
		{
			return false;
		}
	}
	return true;
}

int main(int argc, char *argv[])
{
	std::ifstream fin("C:\\Users\\Matthew\\Desktop\\ctex.txt");
	std::string line;

	//std::cout << "Test" << std::endl;
	std::cout << fin.good() << std::endl;

	std::vector< std::string > create_set;
	std::vector< std::string > destroy_set;

	std::map< std::string, int > create_map;
	std::map< std::string, int > destroy_map;

	while (getline(fin, line))
	{
		if (!startsWith(line, "CMtlK"))
			continue;

		std::cout << line << std::endl;

		std::istringstream sin(line);

		std::string ctex;
		std::string type;
		int num;
		int id;
		std::string address;

		sin >> ctex >> type >> num >> address;

		if (type == "create:")
		{
			create_set.push_back(address);
			create_map.emplace(address, num);
		}
		else if (type == "destroy:")
		{
			destroy_set.push_back(address);
			destroy_map.emplace(address, num);
		}
		std::cout << ctex << type << num << address << std::endl;
	}

	std::sort(create_set.begin(), create_set.end());
	std::sort(destroy_set.begin(), destroy_set.end());

	std::cout << "Create tex=" << create_set.size() << std::endl;
	std::cout << "Destroy tex=" << destroy_set.size() << std::endl;

	std::vector< std::string > diff( 500 );

	auto it = std::set_difference( create_set.begin(), create_set.end(), 
								   destroy_set.begin(), destroy_set.end(),
								   diff.begin() );
	diff.resize(it - diff.begin());


	std::ofstream fout( "C:\\Users\\Matthew\\Desktop\\otex.txt" );

	std::map< int, std::string > diff_map;

	for (std::string s : diff)
	{
		int number = create_map.find( s )->second;
		diff_map.emplace(number, s);
	}

	for (auto pair : diff_map)
	{
		int number = pair.first;
		std::string s = pair.second;
		std::cout << "Diff=" << number << ":" << s << std::endl;
		fout << "Diff=" << number << ":" << s << std::endl;
	}
	std::cout << "Diff count=" << diff.size() << std::endl;
	fout << "Diff count=" << diff.size() << std::endl;

	fout.close();
	system("PAUSE");
	return 0;
}