#include <iostream>
#include <cctype>
#include <string>
#include <fstream>
using namespace std;



void openFile(ifstream& ins);
int shiftMod(char shift);
char punctCheck(char c);

int main ()
{
	int shiftvalue = 0;
	char shift;
	char c;
	ifstream ins;
	openFile(ins); //Opens file and prints out error if file doesn't exist.
	while (!ins.eof()) //Will continue to run code until end of file.
	{

		if(ispunct(c)) //Checks if character is punct.
		{
			if(c == '.' || c == ','|| c == ':' || c == '!' || c == '\'') //If c is something normal, it just prints it out.
			{
				cout << c;
			}
			if(c == '>' || c == '<')
			{
				c = shift;
				shiftMod(shift);
			}
			if (c == '#')
			{
			}
			if(c == '+' || c == '-')
			{
			}

		}
		if (isalpha(c)) //Checks if character is an alpha. NEED TO ADD THE SHIFT THING
		{
			char ch = c;
			toupper(ch);
			cout << ch;
		}
	}

	return 0;

}


int& shiftMod(char& shift)
{
	if (c == '>')
	{
		char shiftnumber = cin.peek();
		if (isdigit(shiftnumber))
		{
			int holder = 0;
			char temp = shiftnumber;
			holder = atoi(&temp);
		}

	}
	if (c == '<')
	{
	}
}





void openFile(ifstream& ins)
{
string fileName;
cout << "Enter filename (with extension): ";
cin >> fileName;
ins.open(fileName.c_str());
while (!ins)
	{
	ins.clear();
	cout << "*** ERROR: Error in opening file ***"
		<< endl << "You entered an invalid file name. Please try again." << endl <<endl;
	cout << "Enter filename (with extension): ";
	cin >> fileName;
	ins.open(fileName.c_str());
	}
}