Member Avatar for Joe_29

I have an assignment to output contents from a .txt file to html. I'm able to output the information from the .txt to the console but how would I output it into an html page? The txt and html files are in the same folder as my .cpp file.

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

int main() {
    ofstream outFS;
    ifstream inFS;
    string inputFilename;
    string outputFilename;

    cout<<"Enter file name: " << endl;
    cin>>inputFilename;

    // Opens file
    inFS.open(inputFilename);

    // Check to see if file is in directory
    if (!inFS.is_open()) {
        cout<<"Could not open file " << inputFilename << endl;
        return 1;
    }

    // Reads each line of the file
    while (getline(inFS, inputFilename)) {
        cout<<inputFilename;
    }
    inFS.close();

}
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  • Latest Post Latest Post by rproffitt

Dani AI

Generated

was right to point out using an output stream and a separate buffer; accidentally reused the filename variable for each line which caused the confusion. To create an HTML file from a .txt file, write a minimal HTML shell (doctype, head with a charset, body) to an ofstream and stream the input lines into it. For plain text the simplest is to put the text inside a <pre> block so line breaks are preserved, and to escape HTML-sensitive characters (&, <, >, quotes) so literal text does not become markup.

A compact example that wraps the text, escapes special characters and writes output.html:

#include <fstream>
#include <iostream>
#include <string>

static std::string escape_html(const std::string &s) {
    std::string out; out.reserve(s.size());
    for (unsigned char c : s) {
        if (c == '&') out += "&amp;";
        else if (c == '<') out += "&lt;";
        else if (c == '>') out += "&gt;";
        else if (c == '"') out += "&quot;";
        else if (c == '\'') out += "&#39;";
        else out.push_back(c);
    }
    return out;
}

int main() {
    std::string inFile = "input.txt", outFile = "output.html";
    std::ifstream in(inFile);
    std::ofstream out(outFile);
    if (!in || !out) return 1;

    out << "<!doctype html>\n<html>\n<head>\n<meta charset=\"utf-8\">\n<title>"
        << inFile << "</title>\n</head>\n<body><pre>\n";

    std::string line;
    while (std::getline(in, line)) out << escape_html(line) << '\n';

    out << "</pre>\n</body>\n</html>\n";
    return 0;
}

Notes and troubleshooting: confirm the program's working directory or use absolute paths; check file-open error handling; if the text already contains HTML fragments do not escape (or choose a different strategy); replace the <pre> approach with paragraph conversion (double-newline => <p>) for nicer formatting. Opening the generated .html in a browser (double-click or file://) should display the result.

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Member Avatar for tinstaafl

basically open the ofstream object for output, then use it instead of cout(outFS<<inputFilename;).

Member Avatar for Joe_29

From what I understand of <fstream> is that ifstream is if you want to import contents from a file (which I did), and ofstream is when you want to outport contents to a file?

Member Avatar for tinstaafl

Yes that is what my comment shows. What may be confusing you is that you're using the variable inputFilename to hold each line from the file, instead of a separate variable. See if this clears it up:

string line = "";
outFS.open("OutputFile1.txt", std::ofstream::out)
// Reads each line of the file
while (getline(inFS, line)) 
{
    outFS << line;
}
outFS.close();
inFS.close();
Edited by tinstaafl
Member Avatar for امير_2

hi,I want a C ++ project that includes all functions

Member Avatar for rproffitt


I have yet to find a C++ project with all functions. However you may be in luck as there is a C++ complier testing tool at

That should create a set of projects that would have everything.

PS. You seem to have placed your new question in someone elses thread. Don't do that.

Edited by rproffitt because: Clarifying
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