Question

Can someone help me put the string removee the return to an outfile and fix??

prompt:

CS 575 LabEx14: no e’s

Let the user specify an input file and an output file (text files).

Read the input file and write the output file; the output file should be the same as the

input file, except that it has no e’s.

For example, if the input file had the line.

Streets meet in the deep.

Then the output file would have the corresponding line

Strts mt in th dp.

#include <iostream> // ifstream ofstream

#include <fstream> // cin cout

#include <sstream> // istringstream ostringstream

#include <string> // string

#include <cstdlib> // exit

using namespace std;

bool die(const string & msg);

string getString(const string & prompt = "Type a line for me: ");

bool open(ifstream fin, const string & fileName);

bool open(ofstream fout, const string & fileName);

string removee(const string & s);

int main() {

fstream fin, fout;

  

string inName(getString("Name of input file: "));

fin.open(inName);

if (!fin) die("Can't Open " + inName + " For Input.");

  

string outName(getString("Name of output file: "));

fout.open(outName);

if (!fout) die("Can't Open " + outName + " For Input.");

  

  

fout.close();

if(!fout) die("Problem writing to " + outName);

fin.close();

}

bool die(const string & msg){

cout << "Fatal error: " << msg << endl;

exit(EXIT_FAILURE);

}

string getString(const string & prompt){

cout << prompt;

string ret;

getline(cin, ret);

return ret;

}

bool open(ifstream & fin, const string & fileName){

fin.open(fileName);

return !!fin;

}

bool open(ofstream & fout, const string & fileName){

ifstream tin (fileName);

if (tin){

return false; // tin's life ends, file closed.

}

fout.open(fileName);

return !!fout;

}

string removee(const string & s){

string ret;

for (unsigned pos = 0; pos < s.size(); pos++) {

if (s[pos] != 'e')

ret += s[pos];

}

return ret;

}

Answer 1

#include <iostream> // ifstream ofstream
#include <fstream> // cin cout
#include <sstream> // istringstream ostringstream
#include <string> // string
#include <cstdlib> // exit
using namespace std;

// Prototype of functions
bool die(const string & msg);
string getString(const string & prompt = "Type a line for me: ");
bool open(ifstream fin, const string & fileName);
bool open(ofstream fout, const string & fileName);
string removee(const string & s);
string readString(ifstream &);
void writeString(ofstream&, string);

// main function definition
int main()
{
// ifstream object declared to read file
ifstream fin;
// ofstream object declared to read file
ofstream fout;

// Calls the function to accept the file name to read
string inName = getString("Name of input file: ");

// Opens the file for reading
fin.open(inName.c_str());

// Checks if file is unable to open display error message
if (!fin)
die("Can't Open " + inName + " For Input.");

// Calls the function to read the data from file and store the return string
string original = readString(fin);

// Calls the function to accept the file name to write
string outName = getString("Name of output file: ");

// Opens the file for writing
fout.open(outName.c_str());

// Checks if file is unable to open display error message
if (!fout)
die("Can't Open " + outName + " For Input.");
// close the file
fout.close();

// Checks if file is unable to open for writing display error message
if(!fout)
die("Problem writing to " + outName);
// close the file
fin.close();

// Calls the function to remove e's from the string
string removedStr = removee(original);
// Opens the file for writing
fout.open(outName.c_str());
// Calls the function to write the removed e's string
writeString(fout, removedStr);
}// End of main function

// Function to display error message and exit the program
bool die(const string & msg)
{
cout << "Fatal error: " << msg << endl;
exit(EXIT_FAILURE);
}// End of function

// Function to display message, accept a file name and returns it
string getString(const string & prompt)
{
// Displays message
cout << prompt;
string ret;
// Accepts the file name
getline(cin, ret);
// Returns the file name
return ret;
}// End of function

// Function to check file can be open for reading or not
bool open(ifstream &fin, const string & fileName)
{
// Opens the file for reading
fin.open(fileName.c_str());
return !!fin;
}// End of function

// Opens the file for writing
bool open(ofstream &fout, const string & fileName)
{
// Opens the file in read mode
ifstream tin (fileName.c_str());
if (tin)
return false; // tin's life ends, file closed.

// Opens the file in write mode
fout.open(fileName.c_str());
return !!fout;
}// End of function

// Function to remove the e's from parameter string and return the removed e's string
string removee(const string &s)
{
string ret;
// Loops till end of the string
for (unsigned pos = 0; pos < s.size(); pos++)
{
// Checks if current character is not 'e'
if (s[pos] != 'e')
// Concatenate the current character to ret string
ret += s[pos];
}// End of for loop

// Returns the result string
return ret;
}// End of function

// Function to write string to file
void writeString(ofstream &fWrite, string str)
{
// Displays the removed e's string
cout<<"\n Writes: "<<str;
// Writes the removed e's string
fWrite<<str;
// Close the file
fWrite.close();
}// End of function

// Function to read the string from file and returns it
string readString(ifstream &fRead)
{
string str = "";
string temp;
// Loops till end of the file
while(!fRead.eof())
{
// Reads a word
fRead>>temp;
// Concatenates the word with space to str
str += temp + " ";
}// End of while loop

// Displays the read string
cout<<"\n Read: "<<str<<endl;
// Close the file
fRead.close();
// Returns the string
return str;
}// End of function

Sample Output:

Name of input file: removeE.txt

Read: Streets meet in the deep.
Name of output file: removedEs.txt

Writes: Strts mt in th dp.

removeE.txt file contents

Streets meet in the deep.

removedEs.txt file contents

Strts mt in th dp.