/*
 * my_sed(argc,argv)
 * filename = argv[1];
 * s1 = argv[2];
 * s2 = argv[3];
 * 	input::ifstream ifs;
 *	input = open(filename, std::ifstream::in);
 *	
 *
 *
 * */


#include <iostream>
#include <fstream>
using std::string;
using std::ifstream;
using std::ofstream;


int	main(int argc, char **argv)
{
	string	text;
	string	buffer;
	string	filename;
	string	oldStr;
	string	newStr;
	int		oldLen;
	int		i = 0, fileLen = 0;

	if (argc != 4)
		return (EXIT_FAILURE);
	ifstream	input(argv[1]);
	oldStr = argv[2];
	newStr = argv[3];
	while (getline(input, buffer))
		text += buffer;
	input.close();
	fileLen = text.length();
	oldLen = oldStr.length();
	while (i < fileLen)
	{
		i = text.find(oldStr, i);
		if (i == -1)
			break ;
		text.erase(i, oldLen);
		text.insert(i, newStr);
	}
	filename = argv[1];
	ofstream	output(filename.append(".replace"));
	output << text;
	output.close();
	return (EXIT_SUCCESS);
}