Read input from a file, capitalize first letter, make every other letter lowercase, and output into a separate file

Question

I am supposed to ask the user for two file names (input and output files). The contents from the input file should be read and the first letter of each sentence should be made u

Answer 1

This part of your code should be changed:

        // if (isprint(ch)) {
        if (ch != '.') {
            if (new_sentence) {
                outputFile.put(toupper(ch));
            }
            else {
                outputFile.put(tolower(ch));
            }
            new_sentence = false;
        }
        else {
            new_sentence = true;
            outputFile.put(ch);
        }

std::isprint() only checks if the character is printable.

---

Full code:

#include 
#include 
#include 
#include 
using namespace std;

int main() {
    string input_file;  // To hold input file name
    string output_File; // To hold output file name
    char ch;            // To hold character
    fstream inputFile;
    fstream outputFile;

    bool new_sentence = true;

    cout << "Enter input file name: " << endl;
    cin >> input_file;

    cout << "Enter output file name: " << endl;
    cin >> output_File;

    outputFile.open(output_File, ios::out);
    inputFile.open(input_file, ios::in);

    if (inputFile) {
        while (inputFile.get(ch)) {
            if (ch != '.') {
                if (new_sentence) {
                    outputFile.put(toupper(ch));
                }
                else {
                    outputFile.put(tolower(ch));
                }
                new_sentence = false;
            }
            else {
                new_sentence = true;
                outputFile.put(ch);
            }
        }
        inputFile.close();
        outputFile.close();
   }
   else {
       cout << "Cannot open file(s)." << endl;
   }

   cout << "\nFile conversion complete." << endl;

   return 0;
}