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//
#include <iostream>
#include <iomanip>
#include <fstream>
#include <cstdlib>
using namespace std;
void heading();
void validateInputFile(ifstream&, string&);
void createOutputFile(fstream&, string);
void makeCopy(ifstream&, fstream&, string, string);
void displayInputFile(ifstream&);
void displayOutputFile(fstream&);
int main()
{
string inFile;
string outFile;
ifstream inputFile;
fstream outputFile;
heading();
cout << "\n\nEnter an input file name: " ;
cin >> inFile;
validateInputFile(inputFile, inFile);
cout << "\nEnter an output file name: ";
cin >> outFile;
createOutputFile(outputFile, outFile);
cout << "\n------------------------------------------------------------" << endl;
makeCopy(inputFile, outputFile, inFile, outFile);
outputFile.close();
inputFile.close();
inputFile.open(inFile.c_str());
outputFile.open(outFile.c_str(), ios::in);
cout << "\n------------------------------------------------------------" << endl;
displayInputFile(inputFile);
cout << "\n------------------------------------------------------------" << endl;
displayOutputFile(outputFile);
inputFile.close();
outputFile.close();
return 0;
}
void heading(){
cout << "************************************************************" << endl;
cout << "|" << setw(59) << "|" << endl;
cout << "|" << setw(59) << "|" << endl;
cout << "|" << setw(43) << "CMPS 400: Operating Systems" << setw(16) << "|" << endl;
cout << "|" << setw(59) << "|" << endl;
cout << "| Designed by: Brittany" << setw(33) << "|" << endl;
cout << "|" << setw(59) << "|" << endl;
cout << "| Program Objective:" << setw(40) << "|" << endl;
cout << "| This program will validate an input file, create an" << setw(6) << "|" << endl;
cout << "| output file, and copy the contents from the input" << setw(8) << "|" <<endl;
cout << "| file to the output file." << setw(33) << "|" << endl;
cout << "|" << setw(59) << "|" << endl;
cout << "|" << setw(59) << "|" << endl;
cout << "************************************************************" << endl;
}
void validateInputFile(ifstream &inputFile, string &file){
int count=0;
inputFile.open(file.c_str());
count++;
while (inputFile.fail()) {
cout << "The file does not exist." << endl;
if(count==3){
cout << "You have tried " << count << " times. Try running the program again." << endl;
exit(0);
}
cout << "Please enter another filename: " << endl;
cin >> file;
inputFile.open(file.c_str());
count++;
}
cout << "The file \"" << file << "\" exists." << endl;
}
void createOutputFile(fstream &outputFile, string file){
outputFile.open(file.c_str(), ios::out);
}
void makeCopy(ifstream &input, fstream &output, string in, string out){
cout << "\nThe file \"" << in << "\" is being copied to the file \"" << out << "\"." << endl;
int count = 1;
string line;
getline(input, line, '\n');
while (input) {
output << count << line << endl;
count++;
getline(input, line, '\n');
}
}
void displayInputFile(ifstream &input){
cout << "\nThis is the contents of the input file:\n" << endl;
string line;
getline(input, line, '\n');
while (input) {
cout << line << endl;
getline(input, line, '\n');
}
}
void displayOutputFile(fstream &output){
cout << "\nThis is the contents of the output file:\n" << endl;
string line;
getline(output, line, '\n');
while (output) {
cout << line << endl;
getline(output, line, '\n');
}
}
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